test: introduce e2e test for keptn.sh/container annotation

[odubajDT]

Fixes #2464

Depends on #2471

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[codecov]

Codecov Report

Merging #2499 (72f4874) into main (d093860) will decrease coverage by 0.02%.
Report is 1 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2499      +/-   ##
==========================================
- Coverage   85.64%   85.63%   -0.02%     
==========================================
  Files         170      170              
  Lines       10528    10523       -5     
==========================================
- Hits         9017     9011       -6     
- Misses       1231     1232       +1     
  Partials      280      280              

Files	Coverage Δ
...erator/webhooks/pod_mutator/handlers/objectmeta.go	100.00% <ø> (ø)

... and 2 files with indirect coverage changes

Flag	Coverage Δ
certificate-operator	67.43% <ø> (ø)
component-tests	56.73% <ø> (+0.49%)	⬆️
lifecycle-operator	84.42% <ø> (-0.02%)	⬇️
metrics-operator	87.75% <ø> (ø)
scheduler	36.53% <ø> (ø)

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.2% Duplication