chore(deps): pin platform-mesh/.github action to 8f28510

Author: renovate[bot]

.github/workflows/pipeline.yml

@@ -18,7 +18,7 @@ jobs:
     concurrency:
       group: ${{ github.ref }}
       cancel-in-progress: true
-    uses: platform-mesh/.github/.github/workflows/pipeline-golang-app.yml@main
+    uses: platform-mesh/.github/.github/workflows/pipeline-golang-app.yml@8f285107c6d8ff9e466a36a2d68f3836be415b1c # main
     secrets: inherit
     with:
       imageTagName: ghcr.io/platform-mesh/example-httpbin-operator