Bumps required core to v0.18.139 and upgrades Desktop engine.

Shotgun Desktop now provides a link to your project in Shotgun when tank_name is not set.

Author: jfboismenu

info.yml

@@ -16,4 +16,4 @@ description: "Zero configuration Shotgun Toolkit workflow."
 
 # Required minimum versions for this item to run
 requires_shotgun_version: "v7.2.0"
-requires_core_version: "v0.18.138"
+requires_core_version: "v0.18.139"