Update gradle enterprise setup (#17399)

* Set remote build cache to push only if authenticated

* Bumped Gradle enterprise extension to 1.20 and CCUD extension to 1.12.5

* Removed duplicated <storeEnabled> line from gradle-enterprise.xml

* Removed addressed comment

Author: ribafish

.mvn/extensions.xml

@@ -3,11 +3,11 @@
     <extension>
         <groupId>com.gradle</groupId>
         <artifactId>gradle-enterprise-maven-extension</artifactId>
-        <version>1.17</version>
+        <version>1.20</version>
     </extension>
     <extension>
         <groupId>com.gradle</groupId>
         <artifactId>common-custom-user-data-maven-extension</artifactId>
-        <version>1.11.1</version>
+        <version>1.12.5</version>
     </extension>
 </extensions>

.mvn/gradle-enterprise.xml

@@ -46,7 +46,8 @@
         </credentials>
       </server>
       <enabled>true</enabled>                                   <!-- must be true for this experiment -->
-      <storeEnabled>#{env['CI'] != null}</storeEnabled>  <!-- adjust to an env var that is always present only in your CI environment -->
+      <!-- Check credentials presence to avoid build cache errors on PR builds when credentials are not present -->
+      <storeEnabled>#{isTrue(env['CI']) and isTrue(env['GRADLE_ENTERPRISE_CACHE_USERNAME']) and isTrue(env['GRADLE_ENTERPRISE_CACHE_PASSWORD'])}</storeEnabled>
     </remote>
   </buildCache>
 </gradleEnterprise>