Update gleam_json to 2.x

[SnakeDoc]

This PR closes #4

This PR is broken down into a few steps:

1. Updates all in-range deps.
2. Updates gleam_json's range to 2.x along with it's locked version.
3. Fixes a deprecation introduced by gleam_stdlib update.
4. Updates the GitHub Action's testing environment (gleam and erlang versions).
5. Bumps semvar major version of this lib due to the new OTP27 requirement.

• Builds Locally
• Tests Run Locally

Let me know if I missed anything or you need something changed! 🚀

[pswsm]

looking forward to this being merged

[benjaminjellis]

It would be really useful to get this merged!

[SnakeDoc]

@brettkolodny Have you had a chance to review this PR yet? Any changes you need?

[brettkolodny]

Sorry! Been a bit MIA since the holidays. Going to take a look now!

[brettkolodny]

@SnakeDoc All looks good! One thing though, should the gleam_json version be instead set to gleam_json >= 1.0.0 and < 3.0.0? I believe the only breaking change for gleam_json 1.0 to 2.0 is moving what it's using on the Erlang side. May be good to be compatible with older projects!

[SnakeDoc]

@brettkolodny Great suggestion! I think I was just copying the existing range pattern, but you are right, it's best to be compatible with the entire 2.x range.

Let me get that fixed up sometime tonight. I'll also re-update everything else while we have the hood open 🚀

[SnakeDoc]

@brettkolodny Added the following:

1. Updated all deps.
2. Widened the gleam_json range as suggested.
3. Took the liberty of converting all dep version ranges to compound ranges. Compound ranges are a bit easier widen over time, and more closely matches what the gleam cli uses.
4. Fixed deprecations introduced by gleam_stdlib updates (again lol). This time we made the gleam/dynamic -> gleam/dynamic/decode switch, and replaced list.pop() with list.first() + list.drop().
5. Updated GH Action's erlang and gleam versions.

Builds with all tests passing locally - but this has a bit more surface area than before and probably warrants a closer look.

Let me know what you think!

[brettkolodny]

Looks good to me, thank you! Will get this released now

[SnakeDoc]

Thank you 👍