chore: comment out caching step in GitHub Actions workflow

- Temporarily disabled the caching of Telegraph mappings in the example workflow to streamline the process. This change is intended for further evaluation of caching strategies.

Author: cyanxiao

.github/workflows/example.yml

@@ -16,13 +16,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Cache Telegraph mappings
-        uses: actions/cache@v3
-        with:
-          path: telegraph-pages.json
-          key: telegraph-mappings-${{ hashFiles('docs/**/*.md', 'README.md') }}
-          restore-keys: |
-            telegraph-mappings-
+      # - name: Cache Telegraph mappings
+      #   uses: actions/cache@v3
+      #   with:
+      #     path: telegraph-pages.json
+      #     key: telegraph-mappings-new-${{ hashFiles('docs/**/*.md', 'README.md') }}
+      #     restore-keys: |
+      #       telegraph-mappings-
 
       - name: Convert markdown to Telegraph
         uses: cyanxiao/md-to-telegraph-action@release