chore: update scripts/update-gradle.sh to v8.12.1

Author: web-flow

CHANGELOG.md

@@ -18,6 +18,9 @@
 - Bump Native SDK from v0.7.19 to v0.7.20 ([#4128](https://github.com/getsentry/sentry-java/pull/4128))
   - [changelog](https://github.com/getsentry/sentry-native/blob/master/CHANGELOG.md#0720)
   - [diff](https://github.com/getsentry/sentry-native/compare/v0.7.19...0.7.20)
+- Bump Gradle from v8.9.0 to v8.12.1 ([#4106](https://github.com/getsentry/sentry-java/pull/4106))
+  - [changelog](https://github.com/gradle/gradle/blob/master/CHANGELOG.md#v8121)
+  - [diff](https://github.com/gradle/gradle/compare/v8.9.0...v8.12.1)
 
 ## 8.1.0
 

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME