Merge pull request #86 from ballerina-platform/automated/dependency_version_update

[AUTO MERGE] Update Dependencies (Ballerina Lang : 2.0.0-beta.1-20210505-121700-55cafd38)

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-beta.1-20210504-191200-8cfc9525
+ballerinaLangVersion=2.0.0-beta.1-20210505-121700-55cafd38