Add t.Parallel() to java tests

Speeds up go test ./java from 32 seconds to 9 seconds.

Test: go test ./java
Change-Id: I4c6640e787c0744c6dfda03b7382839b452e24cf
diff --git a/java/fuzz_test.go b/java/fuzz_test.go
index f29c913..40adae0 100644
--- a/java/fuzz_test.go
+++ b/java/fuzz_test.go
@@ -30,6 +30,7 @@
 )
 
 func TestJavaFuzz(t *testing.T) {
+	t.Parallel()
 	result := prepForJavaFuzzTest.RunTestWithBp(t, `
 		java_fuzz {
 			name: "foo",