feat(github-actions): add Go file change detection to golangci-lint workflow (#1794)

- Introduced a step to check for changes in Go files using dorny/paths-filter.
- Conditional execution of the linting step based on the presence of Go file changes.

This enhancement optimizes the CI process by only running linting when relevant files are modified, improving efficiency.

Signed-off-by: Kemal Akkoyun <[email protected]>

Author: kakkoyun

.github/workflows/golangci-lint.yml

@@ -32,7 +32,16 @@ jobs:
       - name: Install snmp_exporter/generator dependencies
         run: sudo apt-get update && sudo apt-get -y install libsnmp-dev
         if: github.repository == 'prometheus/snmp_exporter'
+      - name: Check for Go file changes
+        id: go-changes
+        uses: dorny/paths-filter@4512585405083f25c027a35db413c2b3b9006d50 # v2.11.1
+        with:
+          filters: |
+            go:
+              - '**/*.go'
+
       - name: Lint
+        if: steps.go-changes.outputs.go == 'true'
         uses: golangci/golangci-lint-action@1481404843c368bc19ca9406f87d6e0fc97bdcfd # v7.0.0
         with:
           args: --verbose