Bumps [extensions/WikiDiscover](https://github.com/miraheze/WikiDiscover) from `2be49d8` to `d88811a`.
- [Release notes](https://github.com/miraheze/WikiDiscover/releases)
- [Commits](miraheze/WikiDiscover@2be49d8...d88811a)

Signed-off-by: dependabot[bot] <support@github.com>