Update Gradle wrapper to version 9.1.0 and update jdk version in innerloop script

[ViktorHofer]

The Java version on the windows.vs2022.amd64.open image got updated from 21.0.8 to 25.0.1 yesterday. This causes build failures:

EXEC : error : A restricted method in java.lang.System has been called [D:\a_work\1\s\src\aspnetcore\src\SignalR\clients\java\signalr\core\signalr.client.java.core.javaproj]
##[error]EXEC(0,0): error : (NETCORE_ENGINEERING_TELEMETRY=Build) A restricted method in java.lang.System has been called
EXEC : error : java.lang.System::load has been called by net.rubygrapefruit.platform.internal.NativeLibraryLoader in an unnamed module (file:/C:/Users/cloudtest/.gradle/wrapper/dists/gradle-8.10-bin/deqhafrv1ntovfmgh0nh3npr9/gradle-8.10/lib/native-platform-0.22-milestone-26.jar) [D:\a_work\1\s\src\aspnetcore\src\SignalR\clients\java\signalr\core\signalr.client.java.core.javaproj]
##[error]EXEC(0,0): error : (NETCORE_ENGINEERING_TELEMETRY=Build) java.lang.System::load has been called by net.rubygrapefruit.platform.internal.NativeLibraryLoader in an unnamed module (file:/C:/Users/cloudtest/.gradle/wrapper/dists/gradle-8.10-bin/deqhafrv1ntovfmgh0nh3npr9/gradle-8.10/lib/native-platform-0.22-milestone-26.jar)
EXEC : error : Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module [D:\a_work\1\s\src\aspnetcore\src\SignalR\clients\java\signalr\core\signalr.client.java.core.javaproj]
##[error]EXEC(0,0): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
EXEC : error : Restricted methods will be blocked in a future release unless native access is enabled [D:\a_work\1\s\src\aspnetcore\src\SignalR\clients\java\signalr\core\signalr.client.java.core.javaproj]
##[error]EXEC(0,0): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Restricted methods will be blocked in a future release unless native access is enabled

According to https://docs.gradle.org/current/userguide/compatibility.html, the gradle version needs to be updated to >= 9.1.0.

[Copilot]

Pull request overview

This PR updates the Gradle wrapper from version 8.10 to 9.1.0 for the Java SignalR client, representing a major version upgrade of the build tool.

Key changes:

• Updated distributionUrl to point to gradle-9.1.0-bin.zip
• Updated distributionSha256Sum to match the new Gradle distribution

[ericstj]

Does this impact this support statement? https://learn.microsoft.com/en-us/aspnet/core/signalr/supported-platforms?view=aspnetcore-10.0#java-client

[ViktorHofer]

Closing in favor of #64972