Skip processing webp image files because we can't strip EXIF

Closes #2080

See merge request pleroma/pleroma!2924

Adapter options unification

Closes #2108

See merge request pleroma/pleroma!2952

Also clarify how it was fixed

We only need to check the content-type. There's no chance a webp file
will get mismatched as another image type.

not needed options deletion

removing StatsWorker from Oban cron jobs

See merge request pleroma/pleroma!2963

temp hackney fix

See merge request pleroma/pleroma!2951

switch back to upstream tesla

See merge request pleroma/pleroma!2966

The patch we required got merged upstream: 9f7261ca49

instance: Drop favicon URLs longer than 255 characters

Closes #2116

See merge request pleroma/pleroma!2949

Rich Media: Do not cache URLs for preview statuses

Closes #1987

See merge request pleroma/pleroma!2956

RichMedia: do not log webpages missing metadata as errors

See merge request pleroma/pleroma!2960

Add a copy of CC-BY-4.0 to the repo

See merge request pleroma/pleroma!2962

We mentined it in COPYING, but didn't actually have a copy in the repo.

Also fixes the return value of Parser.parse on errors, previously
was just `:ok` due to the logger call in the end

ConnectionPool: fix the previous hotfix

See merge request pleroma/pleroma!2959

I rushed the hotfix and forgot how `pop_in` actually works,
I want to die. We need some integration tests for the HTTP client

ConnectionPool middleware: fix a crash due to unimplemented behaviour

See merge request pleroma/pleroma!2958

Structs don't implement Access behaviour, so this crashed. Tests didn't
catch it and I didn't test that part of the codepath. Very sorry

Closes #1987

ConnectionPool middleware: Fix connection leak on ReverseProxy redirects

See merge request pleroma/pleroma!2954

Use TLS when adding Alpine community repository in Dockerfile

See merge request pleroma/pleroma!2955

Requires a patched Tesla due to upstream not saving opts between
redirects, patch submitted at https://github.com/teamon/tesla/pull/414

Added cmake

See merge request pleroma/pleroma!2953

HTTP: radically simplify pool checkin/checkout

See merge request pleroma/pleroma!2948

mix.lock: Bump fast_html

See merge request pleroma/pleroma!2950

This update fixes an incorrect push to Hex that reverted the gcc-10 fix

Use a custom tesla middleware instead of adapter helper function +
custom redirect middleware.

This will also fix "Client died before releasing the connection"
messages when the request pool is overloaded. Since the checkout is
now done after passing ConcurrentLimiter.

This is technically less efficient, since the connection needs to be
checked in/out every time the middleware is left or entered respectively.
But I don't think the nanoseconds we might lose on redirects
to the same host are worth the complexity.

Fix emoji in Question, force generated context/context_id insertion

Closes #1870

See merge request pleroma/pleroma!2915

Fix frontend install mix task bug

See merge request pleroma/pleroma!2942