build: upgrade to gradle 6.4 and track checksum

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

build.gradle

@@ -50,8 +50,9 @@ task clean(type: Delete) {
 
 tasks {
     wrapper {
-        gradleVersion = "6.3"
+        gradleVersion = "6.4"
         distributionType = Wrapper.DistributionType.ALL
+        distributionSha256Sum = "d08f7e24d061910382c2fda9915e6ed42dd1480ae2e99211f92c70190cb697e0"
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
+distributionSha256Sum=d08f7e24d061910382c2fda9915e6ed42dd1480ae2e99211f92c70190cb697e0
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -82,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -129,6 +130,7 @@ fi
 if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath