fix: change klt to keptn for annotations and certs

[RealAnna]

closes #2211
closes #2015

[netlify]

✅ Deploy Preview for keptn-lifecycle-toolkit ready!

Name	Link
🔨 Latest commit	27f1773
🔍 Latest deploy log	https://app.netlify.com/sites/keptn-lifecycle-toolkit/deploys/651e5720bf282800089797c3
😎 Deploy Preview	https://deploy-preview-2229--keptn-lifecycle-toolkit.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[codecov]

Codecov Report

Merging #2229 (27f1773) into main (f11fdb9) will increase coverage by 0.08%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2229      +/-   ##
==========================================
+ Coverage   84.57%   84.65%   +0.08%     
==========================================
  Files         154      154              
  Lines        9957     9960       +3     
==========================================
+ Hits         8421     8432      +11     
+ Misses       1248     1242       -6     
+ Partials      288      286       -2     

Files	Coverage Δ
...okcontroller/keptnwebhookcertificate_controller.go	45.39% <ø> (ø)
...rs/lifecycle/keptnappcreationrequest/controller.go	78.21% <100.00%> (+0.37%)	⬆️

... and 2 files with indirect coverage changes

Flag	Coverage Δ
certificate-operator	65.91% <ø> (ø)
lifecycle-operator	85.03% <100.00%> (+<0.01%)	⬆️
metrics-operator	87.55% <ø> (ø)
scheduler	32.12% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
0.0% Duplication