Bump underscore from 1.12.0 to 1.12.1

Bumps [underscore](https://github.com/jashkenas/underscore) from 1.12.0 to 1.12.1.
- [Release notes](https://github.com/jashkenas/underscore/releases)
- [Commits](jashkenas/underscore@1.12.0...1.12.1)

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

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "popper.js": "^1.16.1",
     "rxjs": "^6.6.3",
     "tslib": "^2.0.0",
-    "underscore": "^1.12.0",
+    "underscore": "^1.12.1",
     "wasm-arrays": "^1.0.2",
     "zone.js": "^0.10.3"
   },