fix: detect architecture for yq download in deploy template

The runner is ARM64 but yq was hardcoded to download amd64 binary.
Auto-detect architecture to download the correct binary.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy-k8s.yaml

@@ -37,7 +37,13 @@ jobs:
       - name: Install yq
         run: |
           set -euo pipefail
-          wget -qO /usr/local/bin/yq https://github.com/mikefarah/yq/releases/download/v4.44.1/yq_linux_amd64
+          ARCH=$(uname -m)
+          case "$ARCH" in
+            aarch64|arm64) YQ_ARCH="arm64" ;;
+            x86_64|amd64)  YQ_ARCH="amd64" ;;
+            *)             YQ_ARCH="amd64" ;;
+          esac
+          wget -qO /usr/local/bin/yq "https://github.com/mikefarah/yq/releases/download/v4.44.1/yq_linux_${YQ_ARCH}"
           chmod +x /usr/local/bin/yq
 
       - name: Update image tag in cluster repo