Downgrade Gradle to 6.8.3

Author: vlsi

gradle/wrapper/gradle-wrapper.properties

@@ -16,7 +16,7 @@
 #
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=8c12154228a502b784f451179846e518733cf856efc7d45b2e6691012977b2fe
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-bin.zip
+distributionSha256Sum=7faa7198769f872826c8ef4f1450f839ec27f0b4d5d1e51bade63667cbccd205
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists