fix Unable to process file command 'env' successfully. (#787)

Author: tg123

version.json

@@ -2,6 +2,9 @@
   "$schema": "https://raw.githubusercontent.com/AArnott/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
   "version": "7.1",
   "publicReleaseRefSpec": [
-    "^refs/heads/master$", // we release out of master
+    "^refs/heads/master$"
   ],
+  "cloudBuild": {
+    "setVersionVariables": false
+  }
 }