Remove 19.4 from iOS

Author: aurimasc

.yamato/upm-ci.yml

@@ -12,12 +12,12 @@ android_test_editors:
   - version: 2020.3
   - version: 2019.4
 
+# 2019.4 fails due to issue unrelated to package
 ios_test_editors:
   - version: trunk
   - version: 2022.1
   - version: 2021.2
   - version: 2020.3
-  - version: 2019.4
 
 test_platforms:
   - name: mac