[EPIC] Removal of Prow CI

[KacperMalachowski]

Description

As we decided to not use prow, we need to resolved given issues:

• Prow jobs migration:
  • Migrate all build jobs outside of Prow. #11711
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Framefrogs #9490
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Goat #9491
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Gopher #9492
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Hasselhoff #9493
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Huskies #9494
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Jellyfish #9495
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - SkydivingTunas #9496
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - SRE #9497
  • [CI/CD] Migrate prowjobs out of Neighbor's Prow - Neighbors #11627
• Removal of Prow:
  • Google Container Registry shutdown preparation #11889
  • Remove labels added by Kyma-Bot on Prow #12147
  • Disable Prow tide component for ALL teams #11628
  • Delete CLA Assistant from the Prow #11956
  • Evaluate how auto approve and merge can be replaced with Github actions or Renovate #12709
  • Automatic Approval is migrated outside of the Prow to the Cloud Run. #12439
  • Remove Prow clusters and code #12470
  • Remove CI-force alerts Slack App #12770
• Follow-ups:
  • Add alerting for failed SA rotation cloud run execution #5870
  • Change the message of the slack-message-sender #12718
  • Auto approve and merge feature is implemented #12605
  • Migrate Automatic Approval outside of the Prow #12438
  • Implement required checks solution #12285
  • Cleanup of images (mainly builds-images and ex-koapps) #12090
  • Migrate pre-main-check-users-map to Github action #9768
  • Cover all GCP service accounts with IaC #9761
  • Setup a standard of naming service accounts after removal of Prow. #11403
  • Lint terraform config files #6939
  • Add drift detection workflow for resources deployed as code (IaC) #12690
  • Research possibility to test our IaC configuration #12691
  • Wrong buildkit-image-builder image used for version bump #10343
  • Cleanup older secrets versions #11979
  • Implement pylint checks for python code #11887
  • Automatic updates to the list of allowed actions community#919
  • [IaC] Remove developer access for terraform planner service account #10075
  • Align secret names and labels in the GCP secret-manager #10125
  • Automated check for secrets naming convention #10310
  • Setup a standard of naming service accounts after removal of Prow. #11403
  • Merge definitions of shared functions from slack-message-sender and rotate-signify-certificate #11886
  • Support specifying filename and path for image sync #12117
  • Define ADO pipeline standard #11947
  • Enable Merge Queue in All Repositories #12762