check cache before installing dependencies

.ci/azure-pipelines.yml

@@ -35,15 +35,15 @@ jobs:
       inputs:
         versionSpec: '10.x'
 
-    - script: 'yarn install'
-      displayName: 'Install Dependencies'
-
     - task: Cache@2
-      displayName: 'Cache Dependencies'
+      displayName: 'Check Cache'
       inputs:
         key: 'yarn | yarn.lock'
         path: '$(Pipeline.Workspace)/node_modules'
 
+    - script: 'yarn install'
+      displayName: 'Install Dependencies'
+
     - script: 'yarn build'
       displayName: 'Build Development'
       condition: eq(variables['BuildConfiguration'], 'development')