build: bump minimum python version to 3.10

- Update project metadata and tool configurations (ruff, mypy) to target Python 3.10.
- Remove `convert_system_message_to_human` parameter from Gemini model test expectations.

Author: lguibr

pyproject.toml

@@ -11,7 +11,7 @@ version = "2.0.0"
 
 description = "Commitai helps you generate git commit messages using AI"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = { file = "LICENSE" }
 authors = [
     { name = "Luis Guilherme", email = "lgpelin92@gmail.com" },
@@ -22,7 +22,6 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -64,7 +63,7 @@ path = "commitai/__init__.py"
 [tool.ruff]
 # Base settings applied to both linter and formatter
 line-length = 88
-target-version = "py39" # Set base target version
+target-version = "py310" # Set base target version
 
 [tool.ruff.lint]
 select = [
@@ -90,7 +89,7 @@ skip-magic-trailing-comma = false
 line-ending = "auto"
 
 [tool.mypy]
-python_version = "3.9" # Consistent with requires-python
+python_version = "3.10" # Consistent with requires-python
 warn_return_any = true
 warn_unused_configs = true
 ignore_missing_imports = true

tests/test_cli.py

@@ -116,7 +116,6 @@ def test_generate_default_gemini(mock_generate_deps):
     mock_generate_deps["google_class"].assert_called_with(
         model="gemini-3-flash-preview",
         google_api_key="fake_google_key",
-        convert_system_message_to_human=True,
     )
     mock_generate_deps["agent_instance"].invoke.assert_called_once()
     mock_generate_deps["commit"].assert_called_once_with("Generated commit message")
@@ -139,7 +138,6 @@ def test_generate_deep_flag(mock_generate_deps):
     mock_generate_deps["google_class"].assert_called_with(
         model="gemini-3-pro-preview",
         google_api_key="fake_google_key",
-        convert_system_message_to_human=True,
     )