Staged Release 6.12.1 (#351)

* [maven-release-plugin] prepare release v6.12.1

* [maven-release-plugin] prepare for next development iteration

Author: lahirumaramba

pom.xml

@@ -19,7 +19,7 @@
 
     <groupId>com.google.firebase</groupId>
     <artifactId>firebase-admin</artifactId>
-    <version>6.12.1-SNAPSHOT</version>
+    <version>6.12.2-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>firebase-admin</name>