docs: add explanation for how to use non-system certificates
Description
The document should mention that the SSL_CERT_FILE or SSL_CERT_DIR environment variables can be used to specify the location of your certificate. https://pkg.go.dev/crypto/x509#SystemCertPool
Discussed in https://github.com/aquasecurity/trivy/discussions/8429
/assign
@knqyf263 Do you have a preference as to where I document these env vars? The docs directory is quite comprehensive and I'm not sure where this would be relevant.
You can add it here. https://trivy.dev/latest/docs/references/troubleshooting/#certification
Is this issue still open?
Yes, it is still open.
Can I take this issue?
Yes, please
hello, is this issue still open? can i take it?
I'm planning to submit the PR tonight.