message: chore: update npm version on windows builds
diff: @@ -16,6 +16,7 @@ jobs:
  displayName: 'Use Node 8.x'
  inputs:
  versionSpec: 8.x
  + - script: npm i -g npm@6
  - task: 1ESLighthouseEng.PipelineArtifactCaching.RestoreCacheV1.RestoreCache@1
  inputs:
  keyfile: '**/package-lock.json, !**/node_modules/**/package-lock.json, !**/.*/**/package-lock.json'
  