Backport PR pandas-dev#31292: CI: Updated version of macos image

ShaharNaveh · meeseeksmachine · commit 8e8e376aee86 · 2020-01-25T15:38:31.000Z
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -4,7 +4,7 @@ jobs:
 - template: ci/azure/posix.yml
   parameters:
     name: macOS
-    vmImage: xcode9-macos10.13
+    vmImage: macOS-10.14
 
 - template: ci/azure/posix.yml
   parameters:
