deploy-ops-dashboard.yml: update helm to v4.0.1

That we can deploy oauth2-proxy again.

Author: BacLuc

.github/workflows/deploy-ops-dashboard.yml

@@ -53,6 +53,19 @@ jobs:
           jq '.' env.yaml
         working-directory: .ops/ops-dashboard
 
+      - name: pin helm to correct version
+        run: |
+          helm version
+          
+          curl -o /tmp/helm.tar.gz -sL https://get.helm.sh/helm-v4.0.1-linux-amd64.tar.gz
+          echo "e0365548f01ed52a58a1181ad310b604a3244f59257425bb1739499372bdff60 /tmp/helm.tar.gz" | sha256sum --check
+          
+          tar -xzf /tmp/helm.tar.gz -C /tmp/
+          mv /tmp/linux-amd64/helm /usr/local/bin/helm
+          
+          chmod +x /usr/local/bin/helm
+          helm version
+
       - name: Setup helm
         run: |
           mkdir ~/.kube && echo '${{ secrets.KUBECONFIG }}' > ~/.kube/config && chmod go-r ~/.kube/config