Bump version code

play-services-core/build.gradle

@@ -65,7 +65,7 @@ def execResult(...args) {
     return stdout.toString().trim()
 }
 
-def gmsVersion = "17.7.85"
+def gmsVersion = "19.4.20"
 def gmsVersionCode = Integer.parseInt(gmsVersion.replaceAll('\\.', ''))
 def gitVersionBase = execResult('git', 'describe', '--tags', '--abbrev=0', '--match=v[0-9]*').substring(1)
 def gitCommitCount = Integer.parseInt(execResult('git', 'rev-list', '--count', "v$gitVersionBase..HEAD"))