Release `rules_java` `v8.4.0`

PiperOrigin-RevId: 697926251
Change-Id: Iae32aa323d539358bd17d9925890e4fe072b5841

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index ec26242..857c7a3 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -1,6 +1,6 @@
 module(
     name = "rules_java",
-    version = "8.3.2",
+    version = "8.4.0",
     bazel_compatibility = [">=6.3.0"],
     compatibility_level = 1,
 )