chore(gh): update website lint

- Correct formatting.
- Pin GitHub Actions to release commit SHA.

Signed-off-by: Ryan Johnson <ryan.johnson@broadcom.com>

.github/workflows/website-lint.yml

@@ -1,16 +1,20 @@
 name: website-lint
+
 on:
   pull_request:
+
 jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Set up Go
-      uses: actions/setup-go@v3
+    - name: Checkout
+      uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
+    - name: Setup Go
+      uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
       with:
-        go-version: 1.19
-    - name: Install tools
+        go-version-file: 'go.mod'
+        cache: true
+    - name: Install Tools
       run: make tools
     - name: Website Lint
       run: make website-lint