tests: ensure logging side effects are cleaned up

tests/conftest.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import importlib
+import logging
 import os
 import re
 import shutil
@@ -402,3 +404,15 @@ def _factory(
 @pytest.fixture
 def project_root() -> Path:
     return Path(__file__).parent.parent
+
+
+@pytest.fixture(autouse=True)
+def reset_logging() -> None:
+    """
+    This fixture ensures that any side effects introduced do to dynamic
+    logging configuration changes (eg: Application class), are reset.
+    """
+    yield
+
+    logging.shutdown()
+    importlib.reload(logging)