Log Message:
chat/py-mastodon: Update to 1.3.1

Changes:

    Mastodon v2.4.3 compatibility:
        Keyword filter support: filters(), filter(), filters_apply(), \ 
filter_create(), filter_update(), filter_delete()
        Follow suggestions support: suggestions(), suggestion_delete()
        account_follow() now has "reblogs" parameter
        account_mute() now has "notifications" parameter
        Support for granular scopes
    Added status_reply() convenience function
    First attempt at basic Pleroma compatibility (Thanks deeunderscore)
    Several small fixes