Clean up uses of `repo_name` in `MODULE.bazel`.

Change-Id: Ie0d82540cdb7804830c7f6a9a9a3e7e33e3b38f5
Reviewed-on: https://code-review.googlesource.com/c/re2/+/62712
Reviewed-by: Alex Chernyakhovsky <achernya@google.com>
Reviewed-by: Paul Wankadia <junyer@google.com>
3 files changed