Fix deprecation warnings (#908)

* Example site: bump hugo modules to latest versions

* Fix deprecation warnings emitted by hugo v0.124

* Fix typos

* Netlify: bump hugo version

---------

Co-authored-by: Emruz Hossain <hossainemruz@gmail.com>

.github/workflows/pull-request.yml

@@ -15,7 +15,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: 20
 
     - name: Install node modules
       run: npm install
@@ -40,7 +40,7 @@ jobs:
     - name: Setup Node
       uses: actions/setup-node@v4
       with:
-        node-version: 18
+        node-version: 20
 
     - name: Install node modules
       run: npm install