Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I see several green ci/circleci builds in the "All checks have passed" section of my PR (connect CircleCI to GitHub if not)
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.
• I've added or updated relevant unit tests.

Motivation and Context

I want to be able to give the argument -skipPackageUpdates to xcodebuild when running gym or run_tests to prevent it from fetching all packages repository.
Without this argument the execution of xcodebuild -showBuildSettings can be slow as it will first need to fetch all dependencies repository

This was attempted by #21562, but the PR is stalled since several years without update.

closes #21562

Description

No existing option allowed to add this argument to xcodebuild in all situations:

• The option skip_package_dependencies_resolution disables the package resolution before getting the build settings of the project. This prevented an execution of xcodebuild -resolvePackageDependencies ..., but it does not gives the option -skipPackageUpdates to xcodebuild when running xcodebuild -showBuildSettings
• The option disable_package_automatic_updates prevents xcodebuild from updating swift packages automatically, and respect the versions in Package.resolved. But this does not prevent xcodebuild from updating packages repository when used
• The last alternative considered was to use the option xcargs and giving it the option -skipPackageUpdates. But this is option is not supported when getting build settings. (This follow the documentation saying this option is used in the build phase)

In this PR I added another option skip_package_repository_fetches that will add the -skipPackageUpdates to xcodebuild arguments.
I choose this name to prevent confusion in what it does.

And as suggested in #21562 I updated the description of the option disable_package_automatic_updates to include that the argument -disableAutomaticPackageResolution will be given to xcodebuild.

I was able to confirm in CI that -skipPackageUpdates was properly given to xcodebuild preventing it from updating all packages repositories when the new option is used.

Testing Steps

I've run bundle exec rspec but I was not able to have all tests pass before my changes. But my changes did not break any tests that were passing before.
Here the list of tests I was not able to see pass

Finished in 6 minutes 23 seconds (files took 5.14 seconds to load)
7486 examples, 9 failures

Failed examples:

rspec ./fastlane/spec/plugins_specs/plugin_generator_spec.rb:297 # Fastlane::PluginGenerator#generate All tests and style validation of the new plugin are passing rubocop validations are passing
rspec ./fastlane/spec/plugins_specs/plugin_generator_spec.rb:303 # Fastlane::PluginGenerator#generate All tests and style validation of the new plugin are passing `rake` runs both rspec and rubocop
rspec ./gym/spec/code_signing_mapping_spec.rb:29 # Gym::CodeSigningMapping#detect_project_profile_mapping returns the mapping of the selected provisioning profiles
rspec ./gym/spec/code_signing_mapping_spec.rb:38 # Gym::CodeSigningMapping#detect_project_profile_mapping detects the build configuration from selected scheme
rspec ./gym/spec/code_signing_mapping_spec.rb:47 # Gym::CodeSigningMapping#detect_project_profile_mapping detects the build configuration from selected scheme of a project based on inheritance for resolve xcconfigs
rspec ./gym/spec/code_signing_mapping_spec.rb:58 # Gym::CodeSigningMapping#detect_project_profile_mapping_for_tv_os returns the mapping of the selected provisioning profiles for tv_os
rspec ./gym/spec/platform_detection_spec.rb:32 # Gym detects the correct platform for a visionOS project
rspec ./trainer/spec/test_parser_spec.rb:312 # Trainer Trainer::XCResult::Parser Xcode 16 xcresult bundle generates correct JUnit XML including retries
rspec ./trainer/spec/test_parser_spec.rb:326 # Trainer Trainer::XCResult::Parser Xcode 16 xcresult bundle generates correct JUnit XML excluding retries