Swiss public transport config flow (#105648)

* add config flow

* unit tests

* yaml config import flow

* change deprecation period and simply code

* keep name for legacy yaml
- removing the name now would break current implementations
- it will be removed together with the deprectation of  yaml config flow

* improve error handling, simpler unique_id, cleanup

* simplify issues for yaml import flow

* improve typing and clean name handling

* streamline unit tests
- happy path + errors
- mock opendata instead of aiohttp

* parametrize unit tests

* improve strings

* add missing aborts

* update coverage ignore

* remove redundant test

* minor clean up of constants

homeassistant/generated/config_flows.py

@@ -475,6 +475,7 @@ FLOWS = {
         "sun",
         "sunweg",
         "surepetcare",
+        "swiss_public_transport",
         "switchbee",
         "switchbot",
         "switchbot_cloud",

homeassistant/generated/integrations.json

@@ -5613,7 +5613,7 @@
     "swiss_public_transport": {
       "name": "Swiss public transport",
       "integration_type": "hub",
-      "config_flow": false,
+      "config_flow": true,
       "iot_class": "cloud_polling"
     },
     "swisscom": {