Remove no longer required workflow

Author: pdabelf5

.github/scripts/exclude_ci_files.txt

@@ -49,7 +49,6 @@
 .github/workflows/stale.yml
 .github/workflows/update-docker-images.yml
 .github/workflows/update-docker-sha.yml
-.github/workflows/update-kubernetes-version.yml
 .github/workflows/update-release-draft.yml
 .github/workflows/updates-notification.yml
 .github/workflows/version-bump.yml