fix(jvm): change caCert params from secret refs to file paths

[pkalsi97]

Changes JVM trait caCert and caCertPassword parameters from secret references (secret:name/key) to file paths.

Users can now mount secrets via the mount trait and provide file paths to the JVM trait:

kamel run app.java \
  -t mount.configs=secret:my-ca \
  -t mount.configs=secret:my-password \
  -t jvm.ca-cert=/etc/camel/conf.d/_secrets/my-ca/ca.crt \
  -t jvm.ca-cert-password=/etc/camel/conf.d/_secrets/my-password/password

Closes #6425
Original Issue #2820
Follows up to #6416

[github-actions]

✔️ Unit test coverage report - coverage increased from 59.8% to 61.1% (+1.3%)

[squakez]

Great work. And yes, it is better when done with less code!

[pkalsi97]

@squakez yup. I definitely think I need to study the existing traits better. I wasn't able to think about this solution in the first attempt.

[squakez]

@squakez yup. I definitely think I need to study the existing traits better. I wasn't able to think about this solution in the first attempt.

You're doing a great work, and for sure we're here to drive the newer contributors in the right direction :)

[github-actions]

✔️ Unit test coverage report - coverage increased from 59.2% to 61.1% (+1.9%)

[pkalsi97]

@squakez I am a bit out and won't be able to take a look at the ci failure till tomorrow.

[squakez]

@squakez I am a bit out and won't be able to take a look at the ci failure till tomorrow.

No worries. It does not seem to be related to this PR. And, in general, we have no rush to have things sorted immediately.