feat: add pull_request flow (lint only)

.github/workflows/pull_request.yaml

@@ -0,0 +1,19 @@
+name: "Build and push"
+
+on:
+  pull_request: {}
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v4
+        with:
+          go-version: 1.23
+          cache: false
+      - uses: actions/checkout@v4
+      - name: go-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest
+          args: --timeout 5m0s