Mark siren entity component as strictly typed (#106719)

.strict-typing

@@ -316,6 +316,7 @@ homeassistant.components.sfr_box.*
 homeassistant.components.shelly.*
 homeassistant.components.simplepush.*
 homeassistant.components.simplisafe.*
+homeassistant.components.siren.*
 homeassistant.components.skybell.*
 homeassistant.components.slack.*
 homeassistant.components.sleepiq.*

mypy.ini

@@ -2921,6 +2921,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.siren.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.skybell.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true