[Security] Bump highcharts from 8.0.4 to 8.1.1 in /app

Bumps [highcharts](https://github.com/highcharts/highcharts-dist) from 8.0.4 to 8.1.1. **This update includes a security fix.**
- [Release notes](https://github.com/highcharts/highcharts-dist/releases)
- [Commits](highcharts/highcharts-dist@v8.0.4...v8.1.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

app/package.json

@@ -12,7 +12,7 @@
     "@types/react": "16.8.8",
     "@types/react-dom": "16.8.3",
     "axios": "^0.19.2",
-    "highcharts": "^8.0.4",
+    "highcharts": "^8.1.1",
     "highcharts-react-official": "^3.0.0",
     "react": "^16.8.5",
     "react-dom": "^16.8.5",

app/yarn.lock

@@ -5801,10 +5801,10 @@ highcharts-react-official@^3.0.0:
   resolved "https://registry.yarnpkg.com/highcharts-react-official/-/highcharts-react-official-3.0.0.tgz#f2e81ed59d299c3473a0dd5ba5df24028875226a"
   integrity sha512-VefJgDY2hkT9gfppsQGrRF2g5u8d9dtfHGcx2/xqiP+PkZXCqalw9xOeKVCRvJKTOh0coiDFwvVjOvB7KaGl4A==
 
-highcharts@^8.0.4:
-  version "8.0.4"
-  resolved "https://registry.yarnpkg.com/highcharts/-/highcharts-8.0.4.tgz#a717434012bd5f9b82b94b737d62acec501d360c"
-  integrity sha512-RD86/w7VNwuY96c2Pv16dtZujJ4vg5viiVjbFF/TCrvFpmtQRzBIECG90ww0JtiK6+6TKlwCYf0an+kgQshnRw==
+highcharts@^8.1.1:
+  version "8.1.1"
+  resolved "https://registry.yarnpkg.com/highcharts/-/highcharts-8.1.1.tgz#7dc011e260289ab64d775807df0d13b85ed88338"
+  integrity sha512-DSkI+fAqkqYDslOVLcEk8DX7W9itRIwzsdS0uVEOnVf0LF1hSKZtDINHP7ze/uBN9NdWQV9HydtiPTrkLx0lXg==
 
 history@^4.9.0:
   version "4.10.1"