Update rapidfuzz requirement from ~=3.6 to ~=3.8 in /requirements

Updates the requirements on [rapidfuzz](https://github.com/rapidfuzz/RapidFuzz) to permit the latest version.
- [Release notes](https://github.com/rapidfuzz/RapidFuzz/releases)
- [Changelog](https://github.com/rapidfuzz/RapidFuzz/blob/main/CHANGELOG.rst)
- [Commits](rapidfuzz/RapidFuzz@v3.6.0...v3.8.1)

---
updated-dependencies:
- dependency-name: rapidfuzz
  dependency-type: direct:production
...

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

requirements/extras.txt

@@ -1,4 +1,4 @@
-rapidfuzz~=3.6
+rapidfuzz~=3.8
 ovos_plugin_manager>=0.0.25a2
 ovos-config>=0.0.12
 ovos-workshop>=0.0.13a22