⬆️ Update dependency ty to v0.0.21

Author: renovate[bot]

pyproject.toml

@@ -188,7 +188,7 @@ dev = [
     # hatch is required to support type hinting and proper packaging of the py.typed file.
     "hatch>=1.14.1",
     "isort==8.0.1",
-    "ty==0.0.20",
+    "ty==0.0.21",
     "prek>=0.3.3",
     "pre-commit-hooks==6.0.0",
     "pylint==4.0.5",