Update redis requirement from <7.2,>=4.3.0 to >=4.3.0,<8.1

Updates the requirements on [redis](https://github.com/redis/redis-py) to permit the latest version.
- [Release notes](https://github.com/redis/redis-py/releases)
- [Changelog](https://github.com/redis/redis-py/blob/master/CHANGES)
- [Commits](redis/redis-py@v4.3.0...v8.0.1)

---
updated-dependencies:
- dependency-name: redis
  dependency-version: 8.0.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -58,7 +58,7 @@ dependencies = [
   "pyparsing>=3.1.0,<3.4",    # Looks like only bugfixes in z-Stream.
   "pysequoia>=0.1.33,<0.2",
   "PyYAML>=5.1.1,<6.1",  # Looks like only bugfixes in z-Stream.
-  "redis>=4.3.0,<7.2",  # Looks like only bugfixes in z-Stream.
+  "redis>=4.3.0,<8.1",  # Looks like only bugfixes in z-Stream.
   "tablib>=3.5.0,<4.0, !=3.6",  # 3.6.0 breaks with import export. Not sure about semver.
   "url-normalize>=1.4.3,<3.1",  # SemVer. https://github.com/niksite/url-normalize/blob/master/CHANGELOG.md#changelog
   "uuid6>=2023.5.2,<=2025.0.1",