chore(package): update sweetalert2 to version 8.15.1

Author: greenkeeper[bot]

src/Frontend/Jp.AdminUI/package.json

@@ -82,7 +82,7 @@
     "spinkit": "1.2.5",
     "summernote": "^0.8.11",
     "sweetalert": "2.1.2",
-    "sweetalert2": "^8.14.0",
+    "sweetalert2": "^8.15.1",
     "weather-icons": "1.3.2",
     "web-animations-js": "^2.3.1",
     "zone.js": "^0.9.1"