Add context to scripts and automations (#16415)

* Add context to script helper

* Update script component

* Add context to automations

* Lint

tests/components/test_script.py

@@ -3,7 +3,7 @@
 import unittest
 from unittest.mock import patch
 
-from homeassistant.core import callback
+from homeassistant.core import Context, callback
 from homeassistant.setup import setup_component
 from homeassistant.components import script
 
@@ -134,6 +134,7 @@ class TestScriptComponent(unittest.TestCase):
     def test_passing_variables(self):
         """Test different ways of passing in variables."""
         calls = []
+        context = Context()
 
         @callback
         def record_call(service):
@@ -157,21 +158,23 @@ class TestScriptComponent(unittest.TestCase):
 
         script.turn_on(self.hass, ENTITY_ID, {
             'greeting': 'world'
-        })
+        }, context=context)
 
         self.hass.block_till_done()
 
         assert len(calls) == 1
-        assert calls[-1].data['hello'] == 'world'
+        assert calls[0].context is context
+        assert calls[0].data['hello'] == 'world'
 
         self.hass.services.call('script', 'test', {
             'greeting': 'universe',
-        })
+        }, context=context)
 
         self.hass.block_till_done()
 
         assert len(calls) == 2
-        assert calls[-1].data['hello'] == 'universe'
+        assert calls[1].context is context
+        assert calls[1].data['hello'] == 'universe'
 
     def test_reload_service(self):
         """Verify that the turn_on service."""