chore: Rebase job container to ensure more current package versions

.gitea/workflows/actions.yaml

@@ -62,6 +62,7 @@ jobs:
 
   build_chart:
     name: Helm chart
+    container: catthehacker/ubuntu:act-latest
     runs-on: dind-rootless
     needs: semrel_dryrun
 
@@ -78,6 +79,7 @@ jobs:
           apt-get install apt-transport-https --yes
           echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" | tee /etc/apt/sources.list.d/helm-stable-debian.list
           apt-get update && apt-get install helm --yes
+          helm version
           helm plugin install https://github.com/chartmuseum/helm-push
       - name: Package helm chart into archive
         run: |