Release `@rules_java` `v9.4.0`

PiperOrigin-RevId: 867508885
Change-Id: Id3610cbe51704aa8c23ea8ad6e1feca3f2fdd231

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index 7dbbc2e..4dcb582 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -1,6 +1,6 @@
 module(
     name = "rules_java",
-    version = "9.3.0",
+    version = "9.4.0",
     bazel_compatibility = [">=7.0.0"],
     compatibility_level = 1,
 )