build(deps): bump .git_submodules/hackneyed-cursor

Bumps [.git_submodules/hackneyed-cursor](https://gitlab.com/Enthymeme/hackneyed-x11-cursors) from `304d098` to `6cb9673`.
- [Release notes](https://gitlab.com/Enthymeme/hackneyed-x11-cursors/tags)
- [Commits](https://gitlab.com/Enthymeme/hackneyed-x11-cursors/compare/304d0983bfba2a20252522ffb21f2a7039aff024...6cb96737d5566e36fadf4526fb374778cbb114c7)

---
updated-dependencies:
- dependency-name: ".git_submodules/hackneyed-cursor"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>