update req and all its deps.

[ckoch-cars]

update tests and Adapter setup

Update req, including:
hpax (MAJOR) https://github.com/elixir-mint/hpax/blob/main/CHANGELOG.md

v1.0.0
Silence warnings on Elixir 1.17+.
Require Elixir 1.12+.

req https://github.com/wojtekmach/req/blob/main/CHANGELOG.md
finch https://github.com/sneako/finch/blob/main/CHANGELOG.md#changelog

mix deps.update req
Resolving Hex dependencies...
Resolution completed in 0.02s
Unchanged:
  earmark_parser 1.4.31
  ex_doc 0.29.4
  fuse 2.5.0
  makeup 1.1.0
  makeup_elixir 0.16.1
  makeup_erlang 0.1.1
  nimble_parsec 1.3.0
  nimble_pool 1.1.0
  req_fuse 0.3.0
Upgraded:
  finch 0.18.0 => 0.19.0 (minor)
  hpax 0.1.2 => 1.0.0 (major)
  jason 1.4.1 => 1.4.4
  mime 2.0.5 => 2.0.6
  mint 1.5.2 => 1.6.2
  nimble_options 1.1.0 => 1.1.1
  req 0.4.14 => 0.5.6 (minor)
  telemetry 1.2.1 => 1.3.0

[wojtekmach]

Btw, if you run mix deps.unlock --unused, that should remove :castore dependency. Since OTP 25 we have access to OS trust store so this is no longer necessary! (If you use Docker, make sure your images have ca-certificates or similar packages.) On CI you can check if you don't have unused deps with mix deps.unlock --check-unused.

[codeadict]

We would need to update some parts of the code that use this reference, mostly tests and type specs

[codeadict]

Same, there are 3 tests that match this