Merge pull request #213 from p2o-lab/snyk-fix-786a243179cbe715a5a96346216a4d87

[Snyk] Security upgrade highcharts from 8.0.0 to 8.1.1

Author: julorenz

package-lock.json

@@ -35,7 +35,7 @@
     "angular-highcharts": "^9.0.11",
     "angular-material-dynamic-themes": "^1.0.4",
     "assign-deep": "^1.0.1",
-    "highcharts": "^8.0.0",
+    "highcharts": "^8.1.1",
     "moment": "^2.24.0",
     "moment-timezone": "^0.5.28",
     "ngx-logger": "4.1.9",