Use OSX 10.13 as the build agent for public CI (#593)

Thanks Juan!

diff --git a/eng/build.yml b/eng/build.yml
index 0b2b772ecc4fe3bc1dfb926625a26f1f6a3ec957..316d7897adc0a7d0cd8af8f62b7b2eeb16ffcedc 100644 (file)
--- a/eng/build.yml
+++ b/eng/build.yml
@@ -56,7 +56,7 @@ jobs:
 
       # Official Build OSX Pool
       ${{ if and(eq(parameters.osGroup, 'MacOS'), eq(variables['System.TeamProject'], 'public')) }}:
-        name: Hosted MacOS
+        vmImage: macOS-10.13
 
       # Official Build Windows Pool
       ${{ if and(eq(parameters.osGroup, 'Windows_NT'), ne(variables['System.TeamProject'], 'public')) }}: