[stubsabot] Bump python-slugify to 7.0.* (#9224)

Release: https://pypi.org/pypi/python-slugify/7.0.0
Homepage: https://github.com/un33k/python-slugify
Diff: https://github.com/un33k/python-slugify/compare/v6.1.2...v7.0.0

Stubsabot analysis of the diff between the two releases:
 - 0 public Python files have been added.
 - 0 files included in typeshed's stubs have been deleted.
 - 2 files included in typeshed's stubs have been modified or renamed: `slugify/__init__.py`, `slugify/__version__.py`.
 - Total lines of Python code added: 11.
 - Total lines of Python code deleted: 3.

stubs/python-slugify/METADATA.toml

@@ -1,4 +1,4 @@
-version = "6.1.*"
+version = "7.0.*"
 
 [tool.stubtest]
 ignore_missing_stub = false