[core] Combine set_component_source_ + register_component_ into one call (#16029)

tests/component_tests/deep_sleep/test_deep_sleep.py

@@ -12,7 +12,7 @@ def test_deep_sleep_setup(generate_main):
         in main_cpp
     )
     assert "new(deepsleep) deep_sleep::DeepSleepComponent();" in main_cpp
-    assert "App.register_component_(deepsleep);" in main_cpp
+    assert "App.register_component_(deepsleep, " in main_cpp
 
 
 def test_deep_sleep_sleep_duration(generate_main):

tests/component_tests/ota/test_web_server_ota.py

@@ -27,7 +27,7 @@ def test_web_server_ota_generated(generate_main: Callable[[str], str]) -> None:
     assert "global_web_server_base" in main_cpp
 
     # Check component is registered
-    assert "App.register_component_(web_server_webserverotacomponent_id)" in main_cpp
+    assert "App.register_component_(web_server_webserverotacomponent_id" in main_cpp
 
 
 def test_web_server_ota_with_callbacks(generate_main: Callable[[str], str]) -> None: