Update rellu requirement from >=0.7 to >=2.0.2

Updates the requirements on [rellu](https://github.com/robotframework/rellu) to permit the latest version.
- [Commits](robotframework/rellu@v0.7...v2.0.2)

---
updated-dependencies:
- dependency-name: rellu
  dependency-version: 2.0.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -9,7 +9,7 @@ robotframework-tidy
 invoke >= 3.0.3
 twine
 wheel
-rellu >= 0.7
+rellu >= 2.0.2
 twine
 wheel
 typing-extensions >= 4.15.0