feat(cli): Source @expo/env dotenv vars for worker deployments

[kitten]

Why

Deployments should allow environment variables to be added to them.

How

Source environment variables using @expo/env, add them to the manifest, and send them to the deployment API to upload environment variables for deployments.

Test Plan

• Manually tested

[github-actions]

Size Change: +75.9 kB (+0.14%)

Total Size: 52.9 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	52.9 MB	+75.9 kB (+0.14%)

_{compressed-size-action}

[szdziedzic]

Hmm, shouldn't we actually use server-side defined env vars for deployments? Why or why not? What is our approach here?

I believe that using @expo/env with EAS is one of the most commonly flagged pain points of EAS Update users. What I mean here is that you usually keep your local dev env vars in .env.local, but when you trigger a prod update they will unknowingly be used with the highest priority for you in your prod update bundle, so you need to be very careful when using EAS Update.

By using @expo/env for worker deployments we might introduce the same confusion here 🤔

[kadikraman]

LGTM, tested locally, the env vars from .env are available in api routes ✔️

[szdziedzic]

@kadikraman @kitten
this is what I planned to do with EAS Update, so my plan was to go in a slightly different direction 😅
https://exponent-internal.slack.com/archives/C013ZK4SA12/p1725644220583309

[github-actions]

✅ Thank you for adding the changelog entry!

[codecov]

Codecov Report

Attention: Patch coverage is 22.22222% with 7 lines in your changes missing coverage. Please review.

Project coverage is 52.34%. Comparing base (51b5946) to head (8adf137).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/eas-cli/src/commands/worker/deploy.ts	0.00%	5 Missing ⚠️
packages/eas-cli/src/worker/assets.ts	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2545      +/-   ##
==========================================
- Coverage   52.34%   52.34%   -0.00%     
==========================================
  Files         554      554              
  Lines       20885    20889       +4     
  Branches     4274     4274              
==========================================
+ Hits        10931    10933       +2     
- Misses       9097     9099       +2     
  Partials      857      857              

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