Bump Gradle wrapper to 9.3.1

Author: mrotteveel

gradle.properties

@@ -1,3 +1,4 @@
 # Publish properties
 releaseRepository=https\://ossrh-staging-api.central.sonatype.com/service/local/staging/deploy/maven2/
-snapshotRepository=https\://central.sonatype.com/repository/maven-snapshots/
+snapshotRepository=https\://central.sonatype.com/repository/maven-snapshots/
+org.gradle.configuration-cache=true

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME