Add retry to kubectl-ng publishing (#465)

.github/workflows/release.yaml

@@ -22,6 +22,7 @@ jobs:
   publish-kubectl-ng:
     runs-on: ubuntu-latest
     needs: publish-kr8s
+    timeout-minutes: 30
     permissions:
       contents: write
     steps:
@@ -37,7 +38,11 @@ jobs:
       - name: Update kr8s pin in kubectl-ng
         run: |
           pushd examples/kubectl-ng
-          poetry add kr8s==${RELEASE_VERSION}
+          until false; do
+            poetry add kr8s==${RELEASE_VERSION} && break
+            echo "Waiting for kr8s==${RELEASE_VERSION} to be available on PyPI..."
+            sleep 15
+          done
           poetry lock
           popd
       - name: Push new pins back to the repo