[eas-cli] Add --auto-configure-update flag to eas build

[williamgrosset]

Why

Users/agents should be able to configure EAS update before a build command runs, so that a user doesn't have to complete a rebuild after.

How

• Added --auto-configure-update to eas build: before the build starts, installs expo-updates, sets updates.url and runtimeVersion in the app config, syncs native config, and adds channels to build profiles
• Equivalent to running eas update:configure before the build, scoped to the build's --platform
• Repeat runs change nothing. ensureEASUpdateIsConfiguredInEasJsonAsync (shared with eas update:configure) now skips the eas.json write when no profile changed

Test Plan

Manually verified EAS update is configured and eas build continues it's execution:

auto-configure-update-flag.mov

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.64%. Comparing base (4c5d06f) to head (00abafe).

Additional details and impacted files

@@                           Coverage Diff                            @@
##           williamgrosset/build-link-project-id    #4139      +/-   ##
========================================================================
+ Coverage                                 62.53%   62.64%   +0.12%     
========================================================================
  Files                                      1009     1009              
  Lines                                     45753    45765      +12     
  Branches                                   9627     9631       +4     
========================================================================
+ Hits                                      28608    28667      +59     
+ Misses                                    15690    15653      -37     
+ Partials                                   1455     1445      -10     

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[github-actions]

✅ Thank you for adding the changelog entry!

[brentvatne]

why not just run eas build:configure and eas update:configure independently?

[williamgrosset]

See #4138 for discussion.