Upgrade systemjs to 6.1.9 (from 6.1.7)

Author: bdukes

package.json

@@ -69,7 +69,7 @@
     "select2": "4.0.12",
     "spectrum-colorpicker": "1.8.0",
     "swiper": "5.2.1",
-    "systemjs": "6.1.7",
+    "systemjs": "6.1.9",
     "tableexport": "5.2.0",
     "tinymce": "5.1.4",
     "underscore": "1.9.1",

yarn.lock

@@ -5607,10 +5607,10 @@ swiper@5.2.1:
     dom7 "^2.1.3"
     ssr-window "^1.0.1"
 
-systemjs@6.1.7:
-  version "6.1.7"
-  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-6.1.7.tgz#631474f8d0d33412be215ab39a294663a90157d9"
-  integrity sha512-v2tDs5HV7Ql8iZd7eBupzTOPIV6OUzNyJ1wNCAlQ7Et73yfQm4dbfQOSNLzcESLY2YEsLbn0K9WAnNsqwK7OFg==
+systemjs@6.1.9:
+  version "6.1.9"
+  resolved "https://registry.yarnpkg.com/systemjs/-/systemjs-6.1.9.tgz#17e5601867a9d1ee7a5dab71b050f38877d6992c"
+  integrity sha512-pmmYAaI/bk1RIPFIOrvP94DlvSyqZ5/BcAXTcUo0sKBqOc3rMuZaLsh1ofhxuIYgxzB/wDeCmG8i6RpmZj6yqA==
 
 tableexport@5.2.0:
   version "5.2.0"