Stop auto-deleting container package versions

Remove the actions/delete-package-versions steps that pruned old
pre-release versions of konnector, backend, and charts/backend on
every push to main. These were deleting images we want to keep.

Author: mjudeikis

.github/workflows/image.yaml

@@ -79,24 +79,3 @@ jobs:
 
     - name: Build and push Helm charts
       run: make release-helm
-
-    - uses: actions/delete-package-versions@e5bc658cc4c965c472efe991f8beea3981499c55 # v5.0.0
-      with:
-        package-name: 'konnector'
-        package-type: 'container'
-        min-versions-to-keep: 10
-        delete-only-pre-release-versions: "true"
-
-    - uses: actions/delete-package-versions@e5bc658cc4c965c472efe991f8beea3981499c55 # v5.0.0
-      with:
-        package-name: 'backend'
-        package-type: 'container'
-        min-versions-to-keep: 10
-        delete-only-pre-release-versions: "true"
-
-    - uses: actions/delete-package-versions@e5bc658cc4c965c472efe991f8beea3981499c55 # v5.0.0
-      with:
-        package-name: 'charts/backend'
-        package-type: 'container'
-        min-versions-to-keep: 10
-        delete-only-pre-release-versions: "true"