Install latest version of helm via apt

helm-package-push/action.yml

@@ -24,8 +24,14 @@ runs:
     - name: Install Helm
       shell: bash
       run: |
-        curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-4 | bash
-        helm version --short || { echo "[ERROR] helm install failed"; exit 1; }
+        curl -fsSL https://packages.buildkite.com/helm-linux/helm-debian/gpgkey \
+          | gpg --dearmor \
+          | sudo tee /usr/share/keyrings/helm.gpg > /dev/null
+        echo "deb [signed-by=/usr/share/keyrings/helm.gpg] https://packages.buildkite.com/helm-linux/helm-debian/any/ any main" \
+          | sudo tee /etc/apt/sources.list.d/helm-stable-debian.list
+        sudo apt-get update -qq
+        sudo apt-get install -y helm
+        helm version --short
 
     - name: Inject image tag into chart values
       shell: bash