feat(elixir): Use asdf to install erlang and elixir

[sl0thentr0py]

No description provided.

[asottile-sentry]

hi -- can we please wait a little bit so the repository owners can review things before making major changes like introducing a whole plugin ecosystem? asdf is quite heavy handed for this and there's more direct solutions that'll be easier to maintain in the long run

[sl0thentr0py]

I already tried the other route which caused the npm target to break. Bottom line is I want to unblock a contractor who's been waiting on this for upwards of 3 weeks now and I do not have time to go through all the dependencies / targets and see what breaks in that environment (nor is there any easy way of testing all the targets against the docker image).
All of this requires better tooling but I believe neither the SDK team nor dev infra has time for all that, so this is the quickest way forward.

I can wait in the future for reviews, sure but fwiw craft feels like it has no clear owner for larger feature requests etc.

[asottile-sentry]

craft is owned by dev-infra. this patch increases the docker image by 20% which is pretty significant for one language.

[sl0thentr0py]

do you have a concrete viable alternative that unblocks me?

[asottile-sentry]

searching the elixir installation page they recommend the precompiled package

[sl0thentr0py]

you need erlang/otp too which is too old on this debian

[asottile-sentry]

the elixir page also links to downloads for erlang as well here