message: build: upgrade
diff: semver "5.6.0"
  symbol-observable "1.2.0"
  -"@angular/common@":
  - version "7.2.11"
  - resolved "https://registry.yarnpkg.com/@angular/common/-/common-7.2.11.tgz#311ff4f9c0ae33b54456555f9da9a0d8c97ce27d"
  +"@angular/common@~7.2.10":
  + version "7.2.15"
  + resolved "https://registry.yarnpkg.com/@angular/common/-/common-7.2.15.tgz#e6c2f6913cdc49f87adcaabc30604e721561374b"
  dependencies:
  tslib "^1.9.0"
  