Bump asttokens from 2.4.0 to 2.4.1 in /etc/requirements_dependabot

Bumps [asttokens](https://github.com/gristlabs/asttokens) from 2.4.0 to 2.4.1.
- [Commits](gristlabs/asttokens@v2.4.0...v2.4.1)

---
updated-dependencies:
- dependency-name: asttokens
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

etc/requirements_dependabot/requirements_tests.txt

@@ -4,7 +4,7 @@
 #
 #    pip-compile --extra=tests --output-file=etc/requirements_dependabot/requirements_tests.txt pyproject.toml
 #
-asttokens==2.4.0
+asttokens==2.4.1
     # via stack-data
 backcall==0.2.0
     # via ipython