Upgraded maven version to latest. (#8)

Author: mohanraosv

action.yaml

@@ -10,7 +10,7 @@ inputs:
   maven-version:
     description: Version of Maven to use
     required: true
-    default: 3.9.2
+    default: 3.9.4
   overwrite-settings:
     description: Overwrite settings.xml
     required: false