message: [CHORE] Upgrade Mac CI image to 10.2.1
diff: @@ -44,7 +44,7 @@ jobs:
  e2e-test:
  macos:
  - xcode: "10.1.0"
  + xcode: "10.2.1"
  environment:
  BASH_ENV: "~/.nvm/nvm.sh"
  @@ -172,7 +172,7 @@ jobs:
  ios-build:
  macos:
  - xcode: "10.1.0"
  + xcode: "10.2.1"
  environment:
  BASH_ENV: "~/.nvm/nvm.sh"
  @@ -240,7 +240,7 @@ jobs:
  ios-testflight:
  macos:
  - xcode: "10.1.0"
  + xcode: "10.2.1"
  steps:
  - checkout
  