gotosocial: update to version 0.13.2

Changelog:

v0.13.2 Spideriest Sloth

Release highlights

Fixes some issues where remote accounts could potentially imitate other accounts in order to deliver a subset of activities to a GtS inbox as those accounts. See post https://gts.superseriousbusiness.org/@gotosocial/statuses/01HNZ5GF2EM5M899B7RKXYNMH9 for more details.

This is a recommended security update over anything 0.13.1 and below. You should update your instance when time permits.
Migration notes
Upgrading

See the release notes for 0.13.0 but replace 0.13.0 with 0.13.2 throughout.
config.yaml

No changes since 0.13.1, see 0.13.0 for migration notes from versions < 0.13.0.
Database Migrations

No changes since 0.13.1, see 0.13.0 for migration notes from versions < 0.13.0.
Detailed Changelog

    f5314c0 [bugfix] Ensure activities sender always = activities actor (#2608)

(nikita)