Bump argcomplete from 3.3.0 to 3.4.0 (pyca#11110)

Bumps [argcomplete](https://github.com/kislyuk/argcomplete) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/kislyuk/argcomplete/releases)
- [Changelog](https://github.com/kislyuk/argcomplete/blob/develop/Changes.rst)
- [Commits](kislyuk/argcomplete@v3.3.0...v3.4.0)

---
updated-dependencies:
- dependency-name: argcomplete
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

ci-constraints-requirements.txt

@@ -7,7 +7,7 @@
 
 alabaster==0.7.16
     # via sphinx
-argcomplete==3.3.0; python_version >= "3.8"
+argcomplete==3.4.0; python_version >= "3.8"
     # via nox
 babel==2.15.0
     # via sphinx