Bump themes/hextra from 7b7eb0f to f65aca5 (#32)

Bumps [themes/hextra](https://github.com/imfing/hextra) from `7b7eb0f` to `f65aca5`.
- [Release notes](https://github.com/imfing/hextra/releases)
- [Commits](imfing/hextra@7b7eb0f...f65aca5)

---
updated-dependencies:
- dependency-name: themes/hextra
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>