Retry ActivityPub inbox delivery on HTTP 401 and 408 errors (#10812)
Retry ActivityPub inbox delivery on HTTP 401 and 408 errors (#10812)

HTTP 401 responses returned by Mastodon's inbox controller may
be temporary if, for instance, the requesting user's actor/key json
could not be retrieved in a timely fashion. This changes allow retries
instead of dropping the message entirely.

Also added HTTP 408 as that error is by nature temporary.
imas/mastodon,pso2club/mastodon,ikuradon/mastodon,Nyoho/mastodon,ikuradon/mastodon,gol-cha/mastodon,koba-lab/mastodon,kazh98/social.arnip.org,d6rkaiz/mastodon,ikuradon/mastodon,Nyoho/mastodon,pinfort/mastodon,Nyoho/mastodon,imas/mastodon,koba-lab/mastodon,Nyoho/mastodon,gol-cha/mastodon,pso2club/mastodon,rainyday/mastodon,gol-cha/mastodon,d6rkaiz/mastodon,pinfort/mastodon,kazh98/social.arnip.org,koba-lab/mastodon,koba-lab/mastodon,d6rkaiz/mastodon,pinfort/mastodon,rainyday/mastodon,gol-cha/mastodon,imas/mastodon,imas/mastodon,rainyday/mastodon,kazh98/social.arnip.org,d6rkaiz/mastodon,pinfort/mastodon,rainyday/mastodon,ikuradon/mastodon,pso2club/mastodon,pso2club/mastodon,kazh98/social.arnip.org