CLI: `build` command needs a `--verbose` and it needs to be enabled on CI

[tido64]

build command is a bit terse on CI:

Run yarn build:ios
  yarn build:ios
  shell: /bin/bash -e {0}
  env:
    CCACHE_DIR: /Users/runner/work/rnx-kit/rnx-kit/.ccache
    CC: /opt/homebrew/opt/ccache/libexec/clang
    CXX: /opt/homebrew/opt/ccache/libexec/clang++
    CMAKE_C_COMPILER_LAUNCHER: /opt/homebrew/bin/ccache
    CMAKE_CXX_COMPILER_LAUNCHER: /opt/homebrew/bin/ccache
warn Package @react-native-webapis/web-storage contains invalid configuration: "dependency.api" is not allowed. Please verify it's properly linked using "npx react-native config" command and contact the package maintainers about this.
ℹ Multiple schemes were found; picking the first one: ReactTestApp, SampleCrossApp
ℹ If this is wrong, specify another scheme with `--scheme`
ℹ Command: xcodebuild -workspace /Users/runner/work/rnx-kit/rnx-kit/packages/test-app/ios/SampleCrossApp.xcworkspace -scheme ReactTestApp -configuration Debug -derivedDataPath /Users/runner/work/rnx-kit/rnx-kit/packages/test-app/ios/DerivedData -sdk iphonesimulator -destination generic/platform=iOS Simulator CODE_SIGNING_ALLOWED=NO COMPILER_INDEX_STORE_ENABLE=NO build
- Building
✔ Build succeeded