Upgrade release tool gradle to run on jdk-21

Signed-off-by: Andrew Leonard <anleonar@redhat.com>

adopt-github-release/gradlew

@@ -44,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx1g" "-Xms1g"'
+DEFAULT_JVM_OPTS='"-Xmx512m" "-Xms512m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
@@ -177,6 +177,9 @@ save () {
 }
 APP_ARGS=$(save "$@")
 
+# Disable gradle daemon, so that no background long running task is left running, and we can control JVM size from the client java invocation
+GRADLE_OPTS="-Dorg.gradle.daemon=false ${GRADLE_OPTS}"
+
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"