Update string formatting to use f-string on core codebase (#125988)

* Update string formatting to use f-string on core codebase

* Small change given review feedback

script/inspect_schemas.py

@@ -57,7 +57,9 @@ def main():
         )
 
     for key in sorted(msg):
-        print("\n{}\n - {}".format(key, "\n - ".join(msg[key])))
+        print(f"\n{key}")
+        for val in msg[key]:
+            print(f" - {val}")
 
 
 if __name__ == "__main__":

script/scaffold/templates/device_trigger/tests/test_device_trigger.py

@@ -109,14 +109,16 @@ async def test_if_fires_on_state_change(
     hass.states.async_set("NEW_DOMAIN.entity", STATE_ON)
     await hass.async_block_till_done()
     assert len(service_calls) == 1
-    assert service_calls[0].data[
-        "some"
-    ] == "turn_on - device - {} - off - on - None - 0".format("NEW_DOMAIN.entity")
+    assert (
+        service_calls[0].data["some"]
+        == "turn_on - device - NEW_DOMAIN.entity - off - on - None - 0"
+    )
 
     # Fake that the entity is turning off.
     hass.states.async_set("NEW_DOMAIN.entity", STATE_OFF)
     await hass.async_block_till_done()
     assert len(service_calls) == 2
-    assert service_calls[1].data[
-        "some"
-    ] == "turn_off - device - {} - on - off - None - 0".format("NEW_DOMAIN.entity")
+    assert (
+        service_calls[1].data["some"]
+        == "turn_off - device - NEW_DOMAIN.entity - on - off - None - 0"
+    )