add final for params, local variables, and fields (#7084)

airbyte-queue/src/test/java/io/airbyte/queue/OnDiskQueueTest.java

@@ -93,7 +93,7 @@ class OnDiskQueueTest {
   }
 
   @SuppressWarnings("SameParameterValue")
-  private static byte[] toBytes(String string) {
+  private static byte[] toBytes(final String string) {
     return string.getBytes(Charsets.UTF_8);
   }