Bump systemjs from 6.1.9 to 6.2.0 (#4850)

Bumps [systemjs](https://github.com/systemjs/systemjs) from 6.1.9 to 6.2.0.
- [Release notes](https://github.com/systemjs/systemjs/releases)
- [Changelog](https://github.com/systemjs/systemjs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/systemjs/systemjs/compare/6.1.9...6.2.0)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -22851,9 +22851,9 @@
       "dev": true
     },
     "systemjs": {
-      "version": "6.1.9",
-      "resolved": "https://registry.npmjs.org/systemjs/-/systemjs-6.1.9.tgz",
-      "integrity": "sha512-pmmYAaI/bk1RIPFIOrvP94DlvSyqZ5/BcAXTcUo0sKBqOc3rMuZaLsh1ofhxuIYgxzB/wDeCmG8i6RpmZj6yqA=="
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/systemjs/-/systemjs-6.2.0.tgz",
+      "integrity": "sha512-lGqkCFHs/uwyzC64LRVA4gCubYbipBwueCyYVHE8UOm8tSA8ixwrkyxut0c/PyF8Kg4Iq9tt2PXsXyVffolrpw=="
     },
     "table": {
       "version": "3.8.3",

package.json

@@ -132,7 +132,7 @@
     "rxjs": "6.5.4",
     "rxjs-compat": "6.5.4",
     "sockjs-client": "1.4.0",
-    "systemjs": "6.1.9",
+    "systemjs": "6.2.0",
     "tslib": "1.10.0",
     "web-animations-js": "2.3.2",
     "xterm": "3.14.5",