Apply naming convention to workflows (#2581)

Co-authored-by: John Sudol <24583161+johnsudol@users.noreply.github.com>

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

@@ -0,0 +1,45 @@
+name: Validate ARC Runners
+
+on:
+  pull_request:
+    branches:
+      - '**'
+    paths:
+      - 'runner/**'
+      - 'test/startup/**'
+      - '!**.md'
+
+permissions:
+  contents: read
+
+jobs:
+  shellcheck:
+    name: runner / shellcheck
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - 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"
+  test-runner-entrypoint:
+    name: Test entrypoint
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Run tests
+      run: |
+        make acceptance/runner/startup