disabled 2020.1 tests again

.yamato/environments.yml

 
 per_commit_editors:
   - version: 2019.4.6f1
-  - version: 2020.1.15f1
+#  - version: 2020.1.15f1
-  - version: 2020.1.15f1
+#  - version: 2020.1.15f1
 #  - version: 2020.2.0a21
 
 publish_platforms: