fix kubectl arch so can build on ARM.

.gitea/workflows/build-and-deploy.yaml

@@ -66,9 +66,18 @@ jobs:
 
       - name: Install kubectl
         run: |
-          curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+          if ! command -v kubectl &> /dev/null; then
+            ARCH=$(uname -m)
+            if [ "$ARCH" = "aarch64" ]; then
+              ARCH="arm64"
+            elif [ "$ARCH" = "x86_64" ]; then
+              ARCH="amd64"
+            fi
+            curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/${ARCH}/kubectl"
             chmod +x kubectl
             sudo mv kubectl /usr/local/bin/
+          fi
+          kubectl version --client
 
       - name: Configure kubectl
         run: |