Update mix.exs

Deps weren't getting updates even though a later release was available. Some of them were giving this warning:
Warning: call to crypto:rand_bytes/1 will fail, since it was removed in 20.0; use crypto:strong_rand_bytes/1

Now only cowlib will give that error. I tried updating cowboy, but then these errors show up in the logs and the instance can't be reached:
[error] Ranch protocol :error of listener Pleroma.Web.Endpoint.HTTP (cowboy_protocol) terminated
** (exit) :undef

changed the description

changed the description

added 131 commits

• 718882b3...5fbb14f5 - 130 commits from branch develop
• f2fa09c5 - Merge branch 'develop' into 'patch-2'

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enabled an automatic merge when the pipeline for f2fa09c5 succeeds

added 1 commit

• 05738e76 - fix compile

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enabled an automatic merge when the pipeline for 05738e76 succeeds

merged

mentioned in commit 8c3880f1