pydantic-factories is not needed to run tests.

--- yamlfix-1.17.0/pyproject.toml.orig
+++ yamlfix-1.17.0/pyproject.toml
@@ -54,7 +54,6 @@
     "pytest>=7.1.3",
     "pytest-cov>=3.0.0",
     "pytest-xdist>=3.0.2",
-    "pydantic-factories>=1.6.1",
 ]
 doc = [
     "mkdocs>=1.3.1",