Rename core-current-stubs-system-modules to be more consistent

Renames to core-public-stubs-system-modules so that it is of the format
core-<sdk-kind>-stubs-system-modules.

Bug: 204189791
Test: m nothing
Change-Id: Iac565c940c2ef92be9cc64c0c6b8102a26afe0dd
diff --git a/java/testing.go b/java/testing.go
index 3397e46..7441e44 100644
--- a/java/testing.go
+++ b/java/testing.go
@@ -344,7 +344,7 @@
 		}`
 
 	systemModules := []string{
-		"core-current-stubs-system-modules",
+		"core-public-stubs-system-modules",
 		"core-module-lib-stubs-system-modules",
 		"legacy-core-platform-api-stubs-system-modules",
 		"stable-core-platform-api-stubs-system-modules",