chore(ci): fix yaml syntax (#8448)

.github/workflows/action_syntax.yml

@@ -0,0 +1,12 @@
+name: action_syntax
+on: [pull_request]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: reviewdog/action-actionlint@v1

.github/workflows/new_client.yml

@@ -18,8 +18,8 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-go@v4
-        with:
-          go-version: 1.20.x
+      with:
+        go-version: 1.20.x
     - name: Find new version files
       id: versions
       # Ignore changes to the internal and root directories.
@@ -36,9 +36,9 @@ jobs:
           echo "new={\"new\":[${list#,}]}" >> $GITHUB_OUTPUT
           echo "skip=" >> $GITHUB_OUTPUT
         fi
-     outputs:
-        versions: ${{ steps.versions.outputs.new }}
-        skip: ${{ steps.versions.outputs.skip }}
+    outputs:
+      versions: ${{ steps.versions.outputs.new }}
+      skip: ${{ steps.versions.outputs.skip }}
   bump_module:
     needs: new_versions
     runs-on: ubuntu-latest
@@ -57,7 +57,7 @@ jobs:
         command: pr
         upstream_owner: googleapis
         upstream_repo: google-cloud-go
-        description: 'New client(s) generated in ${{ github.commits[0][url] }}, triggering release.'
+        description: 'New client(s) generated in ${{ github.event.commits[0].url }}, triggering release.'
         title: 'feat(${{ matrix.new }}): new client(s)'
         message: 'feat(${{ matrix.new }}): new clients'
         primary: 'main'