chore(trait): deprecate master trait in favour of manual RBAC configuration

[pkalsi97]

Closes #6388

Changes:

• Added deprecation warning comment and +camel-k:deprecated=2.9.0 annotation
• Added TraitCondition to warn users when the trait is enabled
• Updated tests to expect deprecation condition and added TestMasterTraitDeprecationWarning
• Auto-generated deprecation badge via gen_doc.sh
• Added migration guide with RBAC examples and property mappings
• Updated e2e tests to use Quarkus properties instead of deprecated trait

@squakez Sorry for multiple PRs.. I am trying to solve as many issues as possible in my holiday haha! You can review them whenever you see fit.

[squakez]

Great stuff! Make them coming and don't worry, we're be happy to be overwhelmed by quality PRs as yours!!

I see we're not adding camel-kubernetes dependencies. Likely is because the runtime already have it in "camel-k-runtime". However, for plain-quarkus, the nightly is likely to fail with the missing dependency.

We can merge as is if all tests are passing, and creating a follow up when we see the failure during nightly plain-quarkus execution.

[github-actions]

⚠️ Unit test coverage report - coverage decreased from 51.6% to 51.5% (-0.1%)

[pkalsi97]

@squakez Thanks.

[squakez]

@pkalsi97 should we merge this and follow up the eventually failing test on plain-quarkus or are you planning to fix in this PR?

[pkalsi97]

@squakez I'll fix it in the PR itself, in some time.