Upgrade Gradle wrapper to version 8.1 (#1632)

Co-authored-by: Leonard Brünings <lord_damokles@gmx.net>

Author: bmscomp

gradle/wrapper/gradle-wrapper.jar

@@ -1,8 +1,8 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 # https://gradle.org/release-checksums/
-distributionSha256Sum=ff7bf6a86f09b9b2c40bb8f48b25fc19cf2b2664fd1d220cd7ab833ec758d0d7
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.2-bin.zip
+distributionSha256Sum=a62c5f99585dd9e1f95dab7b9415a0e698fa9dd1e6c38537faa81ac078f4d23e
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists