Test using ko for building container

.github/workflows/ko.yml

@@ -0,0 +1,20 @@
+name: Publish
+
+on:
+  push:
+    branches: ['ko_build']
+
+jobs:
+  publish:
+    name: Publish
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.22.4'
+      - uses: actions/checkout@v4
+
+      - uses: ko-build/[email protected]
+        env:
+          KO_DOCKER_REPO: ko.local
+      - run: ko build