Add a 'reply to' email address to some more emails

[drummer83]

What? Why?

This builds on top of #13139 and follows the discussion here.

The following should be changed by this PR:

1. The 'authorize payment' email has the customer's email as reply to address.
2. The 'order confirmation' email for shops has the customer's email as reply to address.
3. The 'order cancellation' email for shops has the customer's email as reply to address.

What should we test?

• Check that the reply to address has been added as mentioned above.
• Check that the content of the emails is unchanged.

Release notes

Changelog Category (reviewers may add a label for the release notes):

• User facing changes
• API changes (V0, V1, DFC or Webhook)
• Technical changes only
• Feature toggled

The title of the pull request will be included in the release notes.

Dependencies

Documentation updates