[feat] add microsite accessibility workflow, add microsite lighthouse config

Signed-off-by: Jithen Shriyan <shriyanjithen@gmail.com>

.github/workflows/verify_accessibility-noop.yml

@@ -7,7 +7,7 @@ on:
     branches: [master]
     paths-ignore:
       - 'lighthouserc.js'
-      - '.github/workflows/verify_accessibility_core.yml'
+      - '.github/workflows/verify_accessibility.yml'
       - 'plugins/catalog/src/**'
       - 'plugins/catalog-react/src/**'
       - 'plugins/techdocs/src/**'

.github/workflows/verify_accessibility.yml

@@ -1,11 +1,11 @@
 name: Accessibility
 on:
-  # NOTE: If you change these you must update verify_accessibility_core-noop.yml as well
+  # NOTE: If you change these you must update verify_accessibility-noop.yml as well
   pull_request:
     branches: [master]
     paths:
       - 'lighthouserc.js'
-      - '.github/workflows/verify_accessibility_core.yml'
+      - '.github/workflows/verify_accessibility.yml'
       - 'plugins/catalog/src/**'
       - 'plugins/catalog-react/src/**'
       - 'plugins/techdocs/src/**'

.github/workflows/verify_microsite_accessibility-noop.yml

@@ -0,0 +1,31 @@
+# NO-OP placeholder that always passes for other paths
+# This is here so that we're able to set the status check as required
+
+name: Microsite Accessibility
+on:
+  pull_request:
+    branches: [master]
+    paths-ignore:
+      - '.github/workflows/verify_microsite_accessibility.yml'
+      - 'microsite/scripts/**'
+      - 'microsite/src/**'
+      - 'microsite/data/**'
+      - 'microsite/blog/**'
+      - 'microsite/static/**'
+      - 'beps/**'
+      - 'mkdocs.yml'
+      - 'docs/**'
+permissions:
+  contents: read
+
+jobs:
+  noop:
+    name: Microsite Accessibility
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@eb238b55efaa70779f274895e782ed17c84f2895 # v2.6.1
+        with:
+          egress-policy: audit
+
+      - run: echo NOOP

.github/workflows/verify_microsite_accessibility.yml

@@ -0,0 +1,40 @@
+name: Microsite Accessibility
+on:
+  # NOTE: If you change these you must update verify_microsite_accessibility-noop.yml as well
+  pull_request:
+    branches: [master]
+    paths:
+      - '.github/workflows/verify_microsite_accessibility.yml'
+      - 'microsite/**'
+      - 'beps/**'
+      - 'mkdocs.yml'
+      - 'docs/**'
+jobs:
+  lhci:
+    name: Microsite Accessibility
+    runs-on: ubuntu-latest
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@eb238b55efaa70779f274895e782ed17c84f2895 # v2.6.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@v4.1.1
+
+      - name: Use Node.js 18.x
+        uses: actions/setup-node@v4.0.1
+        with:
+          node-version: 18.x
+
+      - name: top-level install
+        run: yarn install --immutable
+
+      - name: yarn install
+        run: yarn install --immutable
+        working-directory: microsite
+
+      - name: run Lighthouse CI
+        run: |
+          yarn dlx @lhci/cli@0.11.x --config=microsite/lighthouserc.js autorun
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}