MODULE.bazel: mark cc_configure_extension as dev_dependency

Allows us to remove
https://github.com/bazelbuild/bazel-central-registry/tree/main/modules/re2/2025-06-26/patches

Change-Id: Id014d524154c5b686f1b331f648f7aa27eef205b
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63890
Reviewed-by: Yun Peng <pcloudy@google.com>
Reviewed-by: Russ Cox <rsc@swtch.com>

MODULE.bazel

diff --git a/MODULE.bazel b/MODULE.bazel
index 9676559..18ffe9b 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -19,7 +19,7 @@
 
 # This is a temporary hack for `x64_x86_windows`.
 # TODO(junyer): Remove whenever no longer needed.
-cc_configure = use_extension("@rules_cc//cc:extensions.bzl", "cc_configure_extension")
+cc_configure = use_extension("@rules_cc//cc:extensions.bzl", "cc_configure_extension", dev_dependency = True)
 use_repo(cc_configure, "local_config_cc")
 
 # These dependencies will be ignored when the `re2` module is not