Allow multiple config entries in Home Connect (#143935)

* Allow multiple config entries in Home Connect

* Config entry migration

* Create new entry if reauth flow is completed with other account

* Abort if different account on reauth

tests/components/home_connect/conftest.py

@@ -46,7 +46,11 @@ from tests.common import MockConfigEntry, load_fixture
 
 CLIENT_ID = "1234"
 CLIENT_SECRET = "5678"
-FAKE_ACCESS_TOKEN = "some-access-token"
+FAKE_ACCESS_TOKEN = (
+    "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
+    ".eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ"
+    ".SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c"
+)
 FAKE_REFRESH_TOKEN = "some-refresh-token"
 FAKE_AUTH_IMPL = "conftest-imported-cred"
 
@@ -84,7 +88,8 @@ def mock_config_entry(token_entry: dict[str, Any]) -> MockConfigEntry:
             "auth_implementation": FAKE_AUTH_IMPL,
             "token": token_entry,
         },
-        minor_version=2,
+        minor_version=3,
+        unique_id="1234567890",
     )
 
 
@@ -101,6 +106,19 @@ def mock_config_entry_v1_1(token_entry: dict[str, Any]) -> MockConfigEntry:
     )
 
 
+@pytest.fixture(name="config_entry_v1_2")
+def mock_config_entry_v1_2(token_entry: dict[str, Any]) -> MockConfigEntry:
+    """Fixture for a config entry."""
+    return MockConfigEntry(
+        domain=DOMAIN,
+        data={
+            "auth_implementation": FAKE_AUTH_IMPL,
+            "token": token_entry,
+        },
+        minor_version=2,
+    )
+
+
 @pytest.fixture
 async def setup_credentials(hass: HomeAssistant) -> None:
     """Fixture to setup credentials."""