[Automated] Update lang version to 2.0.0-alpha4-SNAPSHOT

ballerina-bot · ballerina-bot · commit 2c67db18f229 · 2021-02-12T16:41:34.000+05:30
diff --git a/gradle.properties b/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.caching=true
 group=org.ballerinalang
 version=0.7.0-alpha3-SNAPSHOT
-ballerinaLangVersion=2.0.0-alpha3
+ballerinaLangVersion=2.0.0-alpha4-SNAPSHOT
