chore(deps): add GitPython and pytest dependencies

- Add GitPython to manage Git repositories programmatically
- Add pytest for running unit tests and configuring test paths

pyproject.toml

@@ -13,6 +13,7 @@ pyyaml = "^6.0.2"
 pydantic = "^2.11.4"
 zstandard = "^0.23.0"
 textual = "^4.0.0"
+gitpython = "^3.1.44"
 
 [tool.poetry.scripts]
 patchman = "patchman.__main__:main"
@@ -23,3 +24,4 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry.group.dev.dependencies]
 twine = "^6.1.0"
+pytest = "^8.4.1"

pytest.ini

@@ -0,0 +1,2 @@
+[pytest]
+pythonpath = src