Account notification email address configuration is now respected

There is a field on the account settings configuration page at /admin/config/people/accounts for a notification email address to use as the sending email address for user account notifications. Previously, this setting was not respected and all emails were sent from the site administration email address (typically user 1's email) instead. So for example, if the site's default administrative email address were:
site.admin@example.com
The site owner could enter a different email on the account settings page of:

user.admin@example.com

However, this setting would not be respected and account notification emails would still be sent from site.admin@example.com.

Starting with Drupal 10.1.0, the setting will be respected. Site owners should note that the sender email address for user notifications will change if they have previously configured this address to something other than the site default email. So, in the above example, user notification emails would now have user.admin@example.com as the sender instead of site.admin@example.com.