Log Message:
py-mastodon: Update to version 1.3.0.

Changes:

Several small bug fixes (Thanks goldensuneur, bowlercaptain, joyeusenoelle)
Improved stream error handling (Thanks codl)
Improvements to streaming:
    Added on_abort() handler to streams
    Added automatic reconnecting
    POTENTIALLY BREAKING CHANGE: Added better error catching to make sure
    streaming functions do not just crash
Mastodon v2.3 compatibility (sorry for the late release)
    only_media parameter in timeline functions
    focus support for media_upload()
    Added media_update()
Mastodon v2.4 compatibility
    Added fields to account_update_credentials()
    WebPush support:
	Added push_subscription(), push_subscription_set(), push_subscription_update(),
	push_subscription_delete()
	Added webpush crypto utilities: push_subscription_generate_keys(),
	push_subscription_decrypt_push()
Added support for pinned toots, an oversight from 2.1.0: status_pin(), status_unpin()
POTENTIALLY BREAKING CHANGE: Changed pagination attributes to not be part of the \ 
dict keys
of paginated return values.
Many internal improvements, more tests