Update rich requirement from ~=14.2 to ~=14.3 (#1179)

Updates the requirements on [rich](https://github.com/Textualize/rich) to permit the latest version.
- [Release notes](https://github.com/Textualize/rich/releases)
- [Changelog](https://github.com/Textualize/rich/blob/master/CHANGELOG.md)
- [Commits](Textualize/rich@v14.2.0...v14.3.1)

---
updated-dependencies:
- dependency-name: rich
  dependency-version: 14.3.1
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -2,4 +2,4 @@ chess~=1.11
 PyYAML~=6.0
 requests~=2.32
 backoff~=2.2
-rich~=14.2
+rich~=14.3