Bump ng2-charts from 2.3.3 to 2.4.2

Bumps [ng2-charts](https://github.com/valor-software/ng2-charts) from 2.3.3 to 2.4.2.
- [Release notes](https://github.com/valor-software/ng2-charts/releases)
- [Changelog](https://github.com/valor-software/ng2-charts/blob/development/CHANGELOG.md)
- [Commits](valor-software/ng2-charts@2.3.3...2.4.2)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -95,7 +95,7 @@
     "minimatch-browser": "1.0.0",
     "moment": "2.29.0",
     "moment-es6": "^1.0.0",
-    "ng2-charts": "2.3.3",
+    "ng2-charts": "2.4.2",
     "ngx-monaco-editor": "8.1.1",
     "pdfjs-dist": "2.5.207",
     "raphael": "2.3.0",