Remove pytest configuration file and update test files for async compatibility

- Deleted `pytest.ini` to streamline test configuration.
- Added `pytest_asyncio` plugin support in `conftest.py`.
- Marked `test_monitor` as an async test to ensure proper execution in an asynchronous context.

pyproject.toml

@@ -0,0 +1,24 @@
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+addopts = [
+    "-v",
+    "--tb=short",
+    "--strict-markers",
+    "--disable-warnings",
+    "--asyncio-mode=auto"
+]
+asyncio_default_fixture = "event_loop"
+asyncio_default_fixture_loop_scope = "function"
+markers = [
+    "asyncio: marks tests as async (deselect with '-m \"not asyncio\"')",
+    "slow: marks tests as slow (deselect with '-m \"not slow\"')",
+    "integration: marks tests as integration tests",
+    "unit: marks tests as unit tests"
+]
+filterwarnings = [
+    "ignore::DeprecationWarning",
+    "ignore::PendingDeprecationWarning"
+]