fix: SHA256-RSA replace SHA1-RSA

[zsnmwy]

What type of PR is this?

fix: SHA256-RSA replace SHA1-RSA

# zsnmwy @ zsnmwys in ~/code/go/src/github.com/zsnmwy/crane/crane on git:345-crane-agent-pod-crashing-with-kind-k8s-124 o [21:36:00] 
$ cat deploy/keys/ca.crt | openssl x509 -text -noout
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            59:81:9d:43:41:3f:ec:95:de:ba:7e:3d:b4:cc:86:eb:8e:bc:bf:33
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN = crane
        Validity
            Not Before: Jun  6 13:19:06 2022 GMT
            Not After : Jun  3 13:19:06 2032 GMT
        Subject: CN = crane
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:c4:98:70:3d:80:c8:e5:65:c3:2c:43:b6:cd:16:
                    f2:b4:01:d9:10:da:71:ac:3e:33:e6:3f:80:e6:d1:
                    a1:70:49:77:58:18:ce:e2:ab:bf:96:1b:a0:f4:a6:
                    5a:85:df:47:92:c8:87:d4:3c:77:fe:a2:91:b1:56:
                    d9:b0:ed:a6:88:01:f2:ae:11:74:60:4c:52:6c:91:
                    29:7a:f0:e4:7b:cb:2a:20:0f:b6:3b:32:d4:84:48:
                    58:db:6b:70:3e:03:50:09:67:e4:11:59:7c:3a:34:
                    89:65:ae:71:c2:61:10:e7:70:e6:28:63:0e:07:31:
                    f3:3d:62:a3:62:9f:b7:4f:fc:f3:e6:af:00:6a:68:
                    8c:ee:e5:c8:5b:38:2f:ef:21:fc:c4:9c:dc:f3:13:
                    ba:c0:01:bc:f2:ec:dc:05:e6:01:aa:f4:5b:f9:f4:
                    67:67:f4:5d:3f:8e:4e:ec:f0:5a:4e:c9:b6:ed:f5:
                    ac:e1:57:18:2d:a0:6f:81:74:96:01:94:4f:79:b1:
                    bf:3d:98:86:36:27:3c:4b:8e:6a:09:86:aa:53:0c:
                    36:0f:13:49:74:46:eb:a4:4d:2c:7b:b4:ef:4d:bc:
                    26:69:b6:f4:c8:99:90:0c:81:c6:91:3e:cf:5e:e2:
                    61:5f:fe:6b:05:10:de:a4:fa:7f:41:5c:ea:64:67:
                    e0:b7
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                09:CA:C9:75:50:30:FD:DD:FA:9D:38:AD:66:89:8A:A8:90:76:12:94
            X509v3 Authority Key Identifier: 
                keyid:09:CA:C9:75:50:30:FD:DD:FA:9D:38:AD:66:89:8A:A8:90:76:12:94

            X509v3 Basic Constraints: critical
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
         97:1e:9e:34:22:2c:ed:12:91:62:dc:74:49:17:cc:51:08:5c:
         b0:7c:6b:63:83:fb:67:2a:97:d5:70:3a:50:dd:52:85:96:8b:
         55:16:b8:30:fa:d4:40:42:76:49:43:61:8b:04:0d:99:1d:fc:
         05:d5:2d:19:b5:49:50:17:6f:df:0c:2a:61:61:56:e9:37:f2:
         32:a0:c4:f2:4e:6a:b6:e4:11:1c:ad:37:19:0f:a7:0a:20:a7:
         50:1e:bb:e4:09:a2:a0:34:70:66:4b:34:11:1a:58:ef:64:2b:
         40:3a:2e:f3:85:d5:bb:43:b1:3a:0e:d3:79:ab:15:02:00:f8:
         46:9a:c4:6b:58:d7:44:da:d2:5a:d1:bc:3b:c2:d8:77:c1:31:
         27:14:4d:c5:1f:c1:3f:03:f0:c3:2c:dd:01:e4:2f:a8:4c:f4:
         d1:17:79:7a:e5:0d:e9:6e:37:48:83:d9:de:72:71:b7:53:9a:
         0b:d0:7f:40:4f:76:bf:19:4c:c9:63:df:d0:28:fe:34:d2:c0:
         4c:f9:6d:a2:f6:d0:05:32:2a:88:9e:ec:f6:69:c3:c5:8f:d3:
         9e:43:d4:bb:fb:5c:57:20:dd:5d:3b:0d:9e:c4:d1:0a:cf:2b:
         5d:81:fd:cb:39:41:c5:11:a0:24:ec:90:0f:c8:cc:0c:96:a1:
         1a:c1:42:e9

# zsnmwy @ zsnmwys in ~/code/go/src/github.com/zsnmwy/crane/crane on git:345-crane-agent-pod-crashing-with-kind-k8s-124 o [21:36:14] 
$ cat deploy/keys/tls.crt | openssl x509 -text -noout
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            72:ac:e2:ed:a8:6e:99:b7:3a:ee:66:16:e5:53:25:a5:9e:5b:bb:6d
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN = crane
        Validity
            Not Before: Jun  6 13:19:06 2022 GMT
            Not After : Jun  3 13:19:06 2032 GMT
        Subject: CN = craned.crane-system.svc
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:ab:2c:ee:f1:2b:09:76:31:13:51:3d:23:db:11:
                    5b:7a:48:4a:26:48:0f:c5:5f:8c:85:b8:ae:90:e5:
                    99:3f:12:6b:c2:0a:ed:c3:14:64:c5:d1:81:0d:3a:
                    f8:62:3b:6b:f6:99:cb:30:8b:6a:02:9c:1b:99:2c:
                    4f:2a:a9:18:a1:0a:e6:a9:15:4e:67:ba:5b:78:8d:
                    72:2c:86:f6:73:17:e6:52:7c:df:2b:df:89:a9:0f:
                    fc:41:18:7c:db:f7:b6:37:d4:9a:3a:0d:77:91:d4:
                    51:1b:94:70:d8:59:a9:6c:91:9c:4e:12:d2:13:27:
                    e8:e1:71:04:cd:7d:25:df:db:ca:af:bb:14:47:e0:
                    6a:a7:4f:1d:e5:d6:2c:74:d7:0c:88:96:c0:24:90:
                    15:2e:a9:e8:8b:c6:d7:e2:ba:5f:a7:f5:a3:c4:c0:
                    12:fa:e6:d7:22:76:59:33:d4:b0:bf:df:48:2e:ae:
                    37:eb:c9:ab:50:9a:95:53:f8:11:11:a2:96:e3:e8:
                    6d:9f:17:d5:ed:6f:76:0b:01:39:c4:bb:a0:cc:31:
                    cd:15:b9:64:3a:38:8b:78:1f:74:fa:44:32:28:f2:
                    48:74:98:01:ee:9e:ca:18:39:d2:dc:9b:0f:a1:0c:
                    93:29:73:c4:17:6f:aa:cb:06:e9:d7:dc:42:c6:8b:
                    27:eb
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Key Usage: 
                Digital Signature, Non Repudiation, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Client Authentication, TLS Web Server Authentication
            X509v3 Subject Alternative Name: 
                DNS:craned.crane-system.svc, DNS:craned.crane-system.svc.cluster.local
    Signature Algorithm: sha256WithRSAEncryption
         54:90:8c:e6:3a:00:54:00:d7:79:9a:8d:08:3c:bb:55:68:c4:
         9f:d7:b2:b3:01:d2:89:5d:c9:4b:9d:dc:7f:d1:90:f3:37:54:
         a4:0e:18:3c:26:7b:f1:3a:4e:6b:ee:0b:2c:d7:47:33:c6:3a:
         ec:69:38:18:69:c2:23:d3:65:3c:5d:89:ce:13:23:b6:a4:c8:
         c3:12:9b:5c:44:0c:eb:76:6e:e9:a1:bc:ae:0b:f6:69:48:e9:
         59:2a:c9:02:9f:44:63:5c:87:74:92:b6:62:fe:80:54:e9:94:
         ad:1e:a7:d2:92:05:5c:a6:6f:f9:f1:4e:3f:2c:09:23:51:cb:
         57:38:22:0f:7f:bb:de:26:c7:e0:63:2f:69:ca:d9:07:08:e5:
         96:6a:71:56:62:1e:d6:0e:68:da:32:07:98:96:67:33:5f:56:
         d0:62:a9:ce:e4:2d:14:89:56:1e:59:3e:d3:1b:da:60:74:ec:
         cb:aa:fc:af:c6:f5:19:f9:1b:23:ad:b0:4a:1d:51:94:e4:5e:
         23:d6:ab:54:77:88:00:6c:2b:a5:93:e1:3f:42:ea:c8:d1:c5:
         60:9c:da:38:68:56:cf:a9:27:7a:a8:b0:8d:3e:d4:32:ac:b3:
         77:84:ea:90:fb:99:19:f1:9e:67:d7:cc:f9:24:16:1b:9e:ab:
         c5:30:e9:3f

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #345

Special notes for your reviewer: