Pin third party actions (#3981)

.github/workflows/arc-validate-runners.yaml

@@ -3,17 +3,17 @@ name: Validate ARC Runners
 on:
   pull_request:
     branches:
-      - '**'
+      - "**"
     paths:
-      - 'runner/**'
-      - 'test/startup/**'
-      - '!**.md'
+      - "runner/**"
+      - "test/startup/**"
+      - "!**.md"
 
 permissions:
   contents: read
 
 concurrency:
-  # This will make sure we only apply the concurrency limits on pull requests 
+  # This will make sure we only apply the concurrency limits on pull requests
   # but not pushes to master branch by making the concurrency group name unique
   # for pushes
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
@@ -25,28 +25,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: shellcheck
-        uses: reviewdog/action-shellcheck@v1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          path: "./runner"
-          pattern: |
-            *.sh
-            *.bash
-            update-status
-          # Make this consistent with `make shellsheck`
-          shellcheck_flags: "--shell bash --source-path runner"
-          exclude: "./.git/*"
-          check_all_files_with_shebangs: "false"
-          # Set this to "true" once we addressed all the shellcheck findings
-          fail_on_error: "false"
+      - name: "Run shellcheck"
+        run: make shellcheck
+
   test-runner-entrypoint:
     name: Test entrypoint
     runs-on: ubuntu-latest
     steps:
-    - name: Checkout
-      uses: actions/checkout@v4
+      - name: Checkout
+        uses: actions/checkout@v4
 
-    - name: Run tests
-      run: |
-        make acceptance/runner/startup
+      - name: Run tests
+        run: |
+          make acceptance/runner/startup