[eas-cli] Improve `workflow:run` and `workflow:validate`

[sjchmiela]

Why

• running workflows requires GitHub connection
• workflow config may be a valid YAML, but invalid config

We want to check both of these:

• in workflow:validate
• before we upload project sources to GCS in workflow:run.

How

I added a validateWorkflowRevisionYamlConfig mutation I'm using here to validate the config and GitHub connection. The GitHub requirement is checked dynamically in www so we can later remove it without having users upgrade to a newer eas-cli.

Brent also wished eas workflow:run test.yml resolved test.yml to .eas/workflows/test.yml automatically, so added this too.

Test Plan

I tried validating and running invalid YAMLs, workflows and valid configs. Things seemed to work ok.

[linear[bot]]

ENG-14171 Improve `eas workflow:run`

[github-actions[bot]]

Size Change: +5.45 kB (+0.01%)

Total Size: 52.9 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	52.9 MB	+5.45 kB (+0.01%)

_{compressed-size-action}

[github-actions[bot]]

Subscribed to pull request	File Patterns	Mentions
**/*	@szdziedzic, @khamilowicz
packages/eas-cli/src/build/**	@szdziedzic, @khamilowicz

Generated by CodeMention

[github-actions[bot]]

⏩ The changelog entry check has been skipped since the "no changelog" label is present.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 39.24051% with 48 lines in your changes missing coverage. Please review.

Project coverage is 52.81%. Comparing base (fed28a8) to head (ff0a56f). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/eas-cli/src/utils/workflowFile.ts	26.67%	22 Missing :warning:
packages/eas-cli/src/commands/workflow/validate.ts	31.82%	15 Missing :warning:
packages/eas-cli/src/commands/workflow/run.ts	27.28%	8 Missing :warning:
.../src/graphql/mutations/WorkflowRevisionMutation.ts	75.00%	2 Missing :warning:
packages/eas-cli/src/build/utils/url.ts	50.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2700 +/- ## ========================================== - Coverage 52.96% 52.81% -0.15% ========================================== Files 576 578 +2 Lines 22095 22139 +44 Branches 4334 4334 ========================================== - Hits 11701 11691 -10 - Misses 10360 10414 +54 Partials 34 34 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles