Pin lowest versions of ruff/mypy to latest versions

These are just for development, so we might as well start with the
latest.

Author: stefanvanburen

pyproject.toml

@@ -38,8 +38,8 @@ Issues = "https://github.com/bufbuild/protovalidate-python/issues"
 [dependency-groups]
 dev = [
 	"google-re2-stubs>=0.1.1",
-	"mypy",
-	"ruff",
+	"mypy>=1.17.1",
+	"ruff>=0.12.0",
 	"types-protobuf==6.30.2.20250503",
 ]