Fix `@rules_java` CI after https://github.com/bazelbuild/buildtools/releases/tag/v8.5.1

Broken by https://github.com/bazelbuild/buildtools/pull/1386

PiperOrigin-RevId: 863149692
Change-Id: I81ca12ed891b539e0c4ccf133ffbc32478d80e43

java/common/rules/impl/java_helper.bzl

diff --git a/java/common/rules/impl/java_helper.bzl b/java/common/rules/impl/java_helper.bzl
index efc7f0e..e45fac9 100644
--- a/java/common/rules/impl/java_helper.bzl
+++ b/java/common/rules/impl/java_helper.bzl
@@ -168,7 +168,7 @@
 def _jar_and_target_arg_mapper(jar):
     # Emit pretty labels for targets in the main repository.
     label = str(jar.owner)
-    if label.startswith("@@//"):
+    if label.startswith("@@//"):  # buildifier: disable=canonical-repository
         label = label.lstrip("@")
     return jar.path + "," + label