add gotest workflow

.gitea/workflows/gotest.yml

@@ -0,0 +1,22 @@
+name: gotest
+on: [push]
+jobs:
+  go:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "1.25.x"
+      - name: go env
+        run: |
+          go version
+          go env GOPROXY
+      - name: vet
+        working-directory: gotest
+        run: go vet ./...
+      - name: build & run
+        working-directory: gotest
+        run: |
+          go build -o app . && ./app
+          echo GO_JOB_OK