Bump @types/chart.js from 2.9.30 to 2.9.31 (#68)

Bumps [@types/chart.js](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/chart.js) from 2.9.30 to 2.9.31.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/chart.js)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/package-lock.json

@@ -269,9 +269,9 @@
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     },
     "@types/chart.js": {
-      "version": "2.9.30",
-      "resolved": "https://registry.npmjs.org/@types/chart.js/-/chart.js-2.9.30.tgz",
-      "integrity": "sha512-EgjxUUZFvf6ls3kW2CwyrnSJhgyKxgwrlp/W5G9wqyPEO9iFatO63zAA7L24YqgMxiDjQ+tG7ODU+2yWH91lPg==",
+      "version": "2.9.31",
+      "resolved": "https://registry.npmjs.org/@types/chart.js/-/chart.js-2.9.31.tgz",
+      "integrity": "sha512-hzS6phN/kx3jClk3iYqEHNnYIRSi4RZrIGJ8CDLjgatpHoftCezvC44uqB3o3OUm9ftU1m7sHG8+RLyPTlACrA==",
       "dev": true,
       "requires": {
         "moment": "^2.10.2"

web/package.json

@@ -27,7 +27,7 @@
     "sass": "^1.32.8"
   },
   "devDependencies": {
-    "@types/chart.js": "^2.9.30",
+    "@types/chart.js": "^2.9.31",
     "@types/classnames": "^2.2.11",
     "@types/markdown-it": "^12.0.1",
     "@types/node": "^14.14.31",