Fix pylint protected-access warnings in tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/addons/test_manager.py

@@ -246,7 +246,7 @@ async def test_addon_uninstall_removes_discovery(
     assert message.service == "mqtt"
     assert coresys.discovery.list_messages == [message]
 
-    coresys.homeassistant.api._ensure_access_token = AsyncMock()
+    coresys.homeassistant.api._ensure_access_token = AsyncMock()  # pylint: disable=protected-access
 
     await coresys.addons.uninstall(TEST_ADDON_SLUG)
     await asyncio.sleep(0)

tests/api/test_auth.py

@@ -88,7 +88,7 @@ async def test_password_reset(
     websession: MagicMock,
 ):
     """Test password reset api."""
-    coresys.homeassistant.api._access_token = "abc123"
+    coresys.homeassistant.api._access_token = "abc123"  # pylint: disable=protected-access
     # pylint: disable-next=protected-access
     coresys.homeassistant.api._access_token_expires = datetime.now(tz=UTC) + timedelta(
         days=1
@@ -124,7 +124,7 @@ async def test_failed_password_reset(
     expected_log: str,
 ):
     """Test failed password reset."""
-    coresys.homeassistant.api._access_token = "abc123"
+    coresys.homeassistant.api._access_token = "abc123"  # pylint: disable=protected-access
     # pylint: disable-next=protected-access
     coresys.homeassistant.api._access_token_expires = datetime.now(tz=UTC) + timedelta(
         days=1

tests/api/test_discovery.py

@@ -91,7 +91,7 @@ async def test_api_send_del_discovery(
 ):
     """Test adding and removing discovery."""
     install_addon_ssh.data["discovery"] = ["test"]
-    coresys.homeassistant.api._ensure_access_token = AsyncMock()
+    coresys.homeassistant.api._ensure_access_token = AsyncMock()  # pylint: disable=protected-access
 
     resp = await api_client.post("/discovery", json={"service": "test", "config": {}})
     assert resp.status == 200