[eas-cli] Unhide workflow commands

[sjchmiela]

Why

Going to release soon.

How

Removed hidden = true overrides.

Test Plan

easd --help printed out information about workflow commands.

~/Developer/test-local (main [$!]) easd --help
EAS command line tool

VERSION
  eas-cli/13.1.1 darwin-arm64 node-v22.4.0

USAGE
  $ eas [COMMAND]

TOPICS
...
  workflow     manage workflows

~/Developer/test-local (main [$!]) easd workflow --help                       
manage workflows

USAGE
  $ eas workflow:COMMAND

COMMANDS
  workflow:run       Run an EAS workflow
  workflow:validate  validate a workflow configuration yaml file

[github-actions[bot]]

Subscribed to pull request	File Patterns	Mentions
**/*	@szdziedzic, @khamilowicz

Generated by CodeMention

[github-actions[bot]]

Size Change: -3.13 kB (-0.01%)

Total Size: 52.9 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	52.9 MB	-3.13 kB (-0.01%)

_{compressed-size-action}

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 52.93%. Comparing base (fdb167d) to head (04c03eb).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2683 +/- ## ========================================== - Coverage 52.94% 52.93% -0.00% ========================================== Files 576 576 Lines 22103 22100 -3 Branches 4336 4336 ========================================== - Hits 11700 11697 -3 Misses 10369 10369 Partials 34 34 ```

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[github-actions[bot]]

✅ Thank you for adding the changelog entry!