Increase timeout for codesign

Author: jonthysell

.ado/publish.yml

@@ -359,6 +359,7 @@ extends:
             - RnwNativeBuildUniversal
           displayName: Sign Binaries and Publish NuGet
           pool: ${{ parameters.AgentPool.Medium }}
+          timeoutInMinutes: 120 # Protect against the long CodeSign task
 
           steps:
           - template: .ado/templates/checkout-shallow.yml@self