Bump restrictedpython from 7.4 to 8.0 (#4393)

Bumps [restrictedpython](https://github.com/zopefoundation/RestrictedPython) from 7.4 to 8.0.
- [Changelog](https://github.com/zopefoundation/RestrictedPython/blob/master/CHANGES.rst)
- [Commits](zopefoundation/RestrictedPython@7.4...8.0)

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

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

requirements_test.txt

@@ -6,4 +6,4 @@ pytest-asyncio==0.25.3
 pytest-cov==6.0.0
 pytest-snapshot==0.9.0
 pytest-socket==0.7.0
-RestrictedPython==7.4
+RestrictedPython==8.0