Merge pull request #80 from ballerina-platform/automated/dependency_version_update

[AUTO MERGE] Update Dependencies (Ballerina Lang : 2.0.0-beta.1-20210503-234400-f5ab2412)

Author: ballerina-bot

gradle.properties

@@ -1,4 +1,4 @@
 org.gradle.caching=true
 group=org.ballerinalang
 version=0.7.0-beta.1-SNAPSHOT
-ballerinaLangVersion=2.0.0-alpha9-20210502-223600-02a84fd6
+ballerinaLangVersion=2.0.0-beta.1-20210503-234400-f5ab2412