Bump asttokens from 2.4.0 to 2.4.1 in /requirements (#21345)

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

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

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

requirements/dev.txt

@@ -75,9 +75,9 @@ executing==1.2.0 \
     --hash=sha256:0314a69e37426e3608aada02473b4161d4caf5a4b244d1d0c48072b8fee7bacc \
     --hash=sha256:19da64c18d2d851112f09c287f8d3dbbdf725ab0e569077efb6cdcbd3497c107
 # asttokens is required by stack-data
-asttokens==2.4.0 \
-    --hash=sha256:2e0171b991b2c959acc6c49318049236844a5da1d65ba2672c4880c1c894834e \
-    --hash=sha256:cf8fc9e61a86461aa9fb161a14a0841a03c405fa829ac6b202670b3495d2ce69
+asttokens==2.4.1 \
+    --hash=sha256:051ed49c3dcae8913ea7cd08e46a606dba30b79993209636c4875bc1d637bc24 \
+    --hash=sha256:b03869718ba9a6eb027e134bfdf69f38a236d681c83c160d510768af11254ba0
 # pure-eval is required by stack-data
 pure-eval==0.2.2 \
     --hash=sha256:01eaab343580944bc56080ebe0a674b39ec44a945e6d09ba7db3cb8cec289350 \