Bump black from 24.3.0 to 24.4.0

Bumps [black](https://github.com/psf/black) from 24.3.0 to 24.4.0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@24.3.0...24.4.0)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/dev.txt

@@ -8,7 +8,7 @@ attrs==23.2.0
     # via
     #   jsonschema
     #   referencing
-black==24.3.0
+black==24.4.0
     # via -r requirements/dev.in
 cachetools==5.3.3
     # via tox
@@ -104,6 +104,7 @@ markupsafe==2.1.5
     # via
     #   -r requirements/prod.txt
     #   jinja2
+    #   mkdocs
 mergedeep==1.3.4
     # via mkdocs
 mkdocs==1.5.3
@@ -128,12 +129,15 @@ packaging==24.0
     #   pytest
     #   tox
 pathspec==0.12.1
-    # via black
+    # via
+    #   black
+    #   mkdocs
 pkgutil-resolve-name==1.3.10
     # via jsonschema
 platformdirs==4.2.0
     # via
     #   black
+    #   mkdocs
     #   tox
     #   virtualenv
 pluggy==1.4.0