test: add dependency-group for tests

Author: aekasitt

README.md

@@ -161,7 +161,7 @@ uv sync --dev
 Testing can be done by the following command post-installation:
 
 ```bash
-uv sync --dev --group=test
+uv sync --dev --group=tests
 pytest
 ```
 

pyproject.toml

@@ -5,11 +5,8 @@ requires = [ 'hatchling >=1.27.0' ]
 
 [dependency-groups]
 dev = [
-  'fastapi >=0',
-  'httpx >=0.24.1',
   'mypy >=1.15.0',
   'pdoc >=14.7.0',
-  'pytest >=7.3.1',
   'ruff >=0.4.7',
 ]
 examples = [
@@ -18,6 +15,12 @@ examples = [
   'pydantic[email] >=1.7.2,<3.0.0',
   'uvicorn >=0.15.0',
 ]
+tests = [
+  'fastapi >=0',
+  'httpx >=0.24.1',
+  'pytest >=7.3.1',
+  'pytest-modern >=0.7.3',
+]
 
 
 [project]