ROX-27964: Support for CA rotation in Sensor

[vladbologa]

Description

WIP. Follow-up for #15312

User-facing documentation

• CHANGELOG.md is updated OR update is not needed
• documentation PR is created and is linked above OR is not needed

Testing and quality

• the change is production ready: the change is GA, or otherwise the functionality is gated by a feature flag
• CI results are inspected

Automated testing

• added unit tests
• added e2e tests
• added regression tests
• added compatibility tests
• modified existing tests

How I validated my change

change me!

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[rhacs-bot]

Images are ready for the commit at 097c910.

To use with deploy scripts, first export MAIN_IMAGE_TAG=4.9.x-420-g097c91065a.

[codecov]

Codecov Report

❌ Patch coverage is 67.79661% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 49.07%. Comparing base (7b6dba6) to head (097c910).

Files with missing lines	Patch %	Lines
sensor/common/centralclient/client.go	50.00%	25 Missing and 4 partials ⚠️
sensor/kubernetes/certrefresh/ca_bundle.go	85.00%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@                         Coverage Diff                         @@
##           vb/central-secondary-ca-support   #16304      +/-   ##
===================================================================
+ Coverage                            49.06%   49.07%   +0.01%     
===================================================================
  Files                                 2627     2628       +1     
  Lines                               194092   194191      +99     
===================================================================
+ Hits                                 95222    95298      +76     
- Misses                               91408    91425      +17     
- Partials                              7462     7468       +6     

Flag	Coverage Δ
go-unit-tests	49.07% <67.79%> (+0.01%)	⬆️

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