Update libraries served from gstatic.com (apigee#281)

Author: giteshk

modules/apigee_asyncapi_doc/apigee_asyncapi_doc.libraries.yml

@@ -17,8 +17,7 @@ asyncapi:
   version: VERSION
   license:
     name: Apache License 2.0
-    url: https://github.com/asyncapi/asyncapi-react/blob/master/LICENSE
+    url: https://www.gstatic.com/apigee-devportal/asyncapi/20250908_RC00/asyncapi-web-component.js.LICENSE.txt
     gpl-compatible: true
   js:
-    https://unpkg.com/@webcomponents/webcomponentsjs/webcomponents-bundle.js: {type: external, minified: true}
-    https://unpkg.com/@asyncapi/web-component/lib/asyncapi-web-component.js: {type: external, minified: true}
+    https://www.gstatic.com/apigee-devportal/asyncapi/20250908_RC00/asyncapi-web-component.js: {type: external, minified: true}

modules/apigee_asyncapi_doc/css/apigee-asyncapi-doc.css

@@ -15,7 +15,7 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
- @import url(https://unpkg.com/@asyncapi/react-component/styles/default.min.css);
+ @import url(https://www.gstatic.com/apigee-devportal/asyncapi/20250908_RC00/default.min.css);
 
 /* Customization as per Apigee */
 .asyncapi,