chore(ci): update golangci-lint and fix script paths

- bump golangci-lint-action to v7 and version to v2.1.6
- correct directory paths in `smoke_test.sh`
- update `test` and `test-ci` targets in Makefile

.gitea/workflows/main.yml

@@ -42,13 +42,11 @@ jobs:
       - name: Download dependencies
         run: go mod download
 
+      - name: Install golangci-lint
+        run: GOTOOLCHAIN=local go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.1.6
+
       - name: Lint
-        uses: golangci/golangci-lint-action@v7
+        run: golangci-lint run --allow-parallel-runners
-        with:
-          version: v2.1.6
-          install-mode: goinstall
-        env:
-          GOTOOLCHAIN: local
 
   test-linux:
     name: Test (Linux)