Description of Problem

Since the release of image-updater 0.15.0, community users have reported some critical bugs and regressions, and they should be fixed in the upcoming patch release.

GITOPS-5802 image-updater app of apps being overwritten
GITOPS-5803 Image Updater continuously force-pushes new commits when checkout branch is specified
GITOPS-5801 image-updater v0.15.0 misses the checksum file release-v0.15.0.sha256

Additional Info

Current release: https://github.com/argoproj-labs/argocd-image-updater/releases/tag/v0.15.0

e9c78e0 (HEAD -> release-0.15, tag: v0.15.0, upstream/release-0.15) Release 0.15.0 (#891)
4f21ade fix: Git write back to helm values is incorrect during the first pass and corrupts existing data (#885)
02eee1d Add e2e tests for apps in any namespace feature (#844)
3e7378a chore: Address comments in PR #854 (#886)
ad9648f k8sClient get resources across all namespaces (#601) (#854)