⬆️ Bump shellingham from 1.4.0 to 1.5.4

Bumps [shellingham](https://github.com/sarugaku/shellingham) from 1.4.0 to 1.5.4.
- [Release notes](https://github.com/sarugaku/shellingham/releases)
- [Changelog](https://github.com/sarugaku/shellingham/blob/master/CHANGELOG.rst)
- [Commits](sarugaku/shellingham@1.4.0...1.5.4)

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

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

requirements.txt

@@ -6,7 +6,7 @@ django==3.2.11; python_version >= "3.6"
 pygments==2.11.2; python_version >= "3.5"
 pytz==2021.3; python_version >= "3.6"
 rich==11.0.0; python_full_version >= "3.6.2" and python_full_version < "4.0.0"
-shellingham==1.4.0; python_version >= "3.6"
+shellingham==1.5.4; python_version >= "3.6"
 sqlparse==0.4.2; python_version >= "3.6"
 tabulate==0.8.9
 typer==0.4.0; python_version >= "3.6"