[eas-cli] Temporarily increase coverage memory to stabilize CI

[byCedric]

Checklist

• I've added an entry to CHANGELOG.md if necessary. You can comment this pull request with /changelog-entry [breaking-change|new-feature|bug-fix|chore] [message] and CHANGELOG.md will be updated automatically.

Why

CI's coverage tests seem to fail due to OOM errors caused by OCLIF. This (temporarily) increases the memory limit to stabilize CI more. But, eventually, we have to address these OOM errors (see this notion doc)

How

Added NODE_OPTIONS envvar to the yarn test --coverage command.

Test Plan

See if CI is more stable than it currently is.

[github-actions]

Size Change: -344 B (0%)

Total Size: 25.1 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	25.1 MB	-344 B (0%)

_{compressed-size-action}

[codecov]

Codecov Report

Merging #1196 (4be7ceb) into main (d3d6d41) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1196   +/-   ##
=======================================
  Coverage   51.43%   51.43%           
=======================================
  Files         373      373           
  Lines       13358    13358           
  Branches     2752     2752           
=======================================
  Hits         6870     6870           
  Misses       5974     5974           
  Partials      514      514           

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