Python dependency: Update safety requirement from >=3.7.0 to >=3.8.1

Updates the requirements on [safety](https://github.com/pyupio/safety) to permit the latest version.
- [Release notes](https://github.com/pyupio/safety/releases)
- [Changelog](https://github.com/pyupio/safety/blob/main/CHANGELOG.md)
- [Commits](pyupio/safety@3.7.0...3.8.1)

---
updated-dependencies:
- dependency-name: safety
  dependency-version: 3.8.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

tools/requirements.txt

@@ -2,6 +2,6 @@ requests>=2.32.5,<2.33; python_version <= '3.9'
 requests>=2.34.2; python_version > '3.9'
 requests[security]>=2.32.5,<2.33; python_version <= '3.9'
 requests[security]>=2.34.2; python_version > '3.9'
-safety>=3.7.0
+safety>=3.8.1
 Sphinx==7.4.7
 sphinxcontrib-youtube==1.5.0