ci: replace poetry with uv

Author: leandrodamascena

noxfile.py

@@ -36,10 +36,11 @@ def build_and_run_test(session: nox.Session, folders: list, extras: str = "") ->
     session.install("pytest", "pytest-mock", "pytest_socket", "pytest-asyncio")
 
     # Powertools project folder is in the root
+    # Always install with validation extra to avoid import errors from eager imports
     if extras:
-        session.install(f"./[{extras}]")
+        session.install(f"./[validation,{extras}]")
     else:
-        session.install("./")
+        session.install("./[validation]")
 
     # Execute test in specific folders
     session.run("pytest", *folders)