Rename github workflows so they all use hyphens, instead of a mix of underscores and hyphens

.github/workflows/accessibility-tests.yml

@@ -0,0 +1,40 @@
+name: Accessibility Tests
+
+on:
+  workflow_dispatch:
+
+  schedule:
+    - cron:  '0 2 * * 1-5'
+
+permissions: {}
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: macos-26
+    timeout-minutes: 150
+
+    concurrency:
+      # Only allow a single run of this workflow on each branch, automatically cancelling older runs.
+      group: ${{ format('accessibility-tests-{0}', github.ref) }}
+      cancel-in-progress: true
+
+    steps:
+      - uses: nschloe/action-cached-lfs-checkout@385a8ecc719e50b8c71af6ab01a624b486b7c3bc # v1.2.5
+        with:
+          persist-credentials: false
+
+      - name: Setup environment
+        run: source ci_scripts/ci_common.sh && setup_github_actions_environment
+
+      - name: Run tests
+        run: swift run -q tools ci accessibility-tests
+
+      - name: Archive artifacts
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        if: failure()
+        with:
+          name: Results
+          path: test_output/AccessibilityTests.xcresult.zip
+          retention-days: 7
+          if-no-files-found: ignore