tls ca: option doesn't support the same formats as openssl -CAfile

[sam-github]

• Version: all
• Platform: all
• Subsystem: tls

OpenSSL supports "BEGIN TRUSTED CERTIFICATE", whereas Node.js silently ignores them. When people fail to authenticate with a ca: file, they often try with other tools (openssl s_client -CAfile ..., curl -cacert ..., ...) to confirm where the CAs are valid. They find they are, but that they don't work with Node.js. Ouch.

Fixed in #24733