add CA for https

[legioner0]

instead of skip tls verify

[attachmentgenie]

@legioner0 would it be possible to add a test for this new behavior?

[legioner0]

@legioner0 would it be possible to add a test for this new behavior?

Sure, next week

[legioner0]

@attachmentgenie, done.
Implementation use a bit tricky way to make test work correctly - replace server certificate after initial procedure in entrypoint of icinga2 container, but before icinga2 server started. New certificate has IP SAN with 127.0.0.1 value, required for correct connection to https://127.0.0.1:5665/v1.