Bump core-js from 3.4.1 to 3.4.2 (#4584)

Bumps [core-js](https://github.com/zloirock/core-js) from 3.4.1 to 3.4.2.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/compare/v3.4.1...v3.4.2)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -7975,9 +7975,9 @@
       }
     },
     "core-js": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.4.1.tgz",
-      "integrity": "sha512-KX/dnuY/J8FtEwbnrzmAjUYgLqtk+cxM86hfG60LGiW3MmltIc2yAmDgBgEkfm0blZhUrdr1Zd84J2Y14mLxzg=="
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.4.2.tgz",
+      "integrity": "sha512-bUTfqFWtNKWp73oNIfRkqwYZJeNT3lstzZcAkhhiuvDraRSgOH1/+F9ZklbpR4zpdKuo4cpXN8tKP7s61yjX+g=="
     },
     "core-js-compat": {
       "version": "3.4.1",

package.json

@@ -111,7 +111,7 @@
     "@types/highlight.js": "^9.12.3",
     "ace-builds": "1.4.7",
     "c3": "0.7.11",
-    "core-js": "3.4.1",
+    "core-js": "3.4.2",
     "d3": "5.14.2",
     "file-saver": "2.0.2",
     "hammerjs": "2.0.8",