fix: update github actions workflows to use correct reusable workflows (#10)

Author: kekcleader

.github/workflows/pipeline.yml

@@ -13,7 +13,7 @@ jobs:
     concurrency:
       group: ${{ github.ref }}
       cancel-in-progress: true
-    uses: platform-mesh/gha/.github/workflows/pipeline-golang-app.yml@main
+    uses: platform-mesh/.github/.github/workflows/pipeline-golang-app.yml@main
     secrets: inherit
     with:
       imageTagName: ghcr.io/platform-mesh/extension-manager-operator