Fix i/o in august camera async image update (#32044)

* Fix i/o in august camera image update

* Address review comments

homeassistant/components/august/camera.py

@@ -64,12 +64,17 @@ class AugustCamera(Camera):
 
         if self._image_url is not latest.image_url:
             self._image_url = latest.image_url
-            self._image_content = requests.get(
-                self._image_url, timeout=self._timeout
-            ).content
+            self._image_content = await self.hass.async_add_executor_job(
+                self._camera_image
+            )
 
         return self._image_content
 
+    def _camera_image(self):
+        """Return bytes of camera image via http get."""
+        # Move this to py-august: see issue#32048
+        return requests.get(self._image_url, timeout=self._timeout).content
+
     @property
     def unique_id(self) -> str:
         """Get the unique id of the camera."""