Improvement/cscli hub update: specify when there is a new parser/scenario/collection

[AlteredCoder]

Is your feature request related to a problem? Please describe. When running cscli hub update it says which parser/scenario/collections are outdated, but not the new one

Describe the solution you'd like I would like to know also that there is new configuration items

Example of what you imagine

sudo cscli hub update                               
INFO[15-12-2021 12:32:47 PM] Wrote new 196016 bytes index to /etc/crowdsec/hub/.index.json 
INFO[15-12-2021 12:32:47 PM] dependency of crowdsecurity/sshd : outdated parsers crowdsecurity/sshd-logs 
INFO[15-12-2021 12:32:47 PM] new collection: crowdsecurity/proftpd