Bump lodash from 4.17.15 to 4.17.19 (#770)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19)

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

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

package.json

@@ -33,7 +33,7 @@
     "leaflet-providers": "1.0.*",
     "leaflet-rotatedmarker": "^0.2.0",
     "leaflet.geodesic": "^2.5.2",
-    "lodash": ">=4.17.13",
+    "lodash": ">=4.17.19",
     "marked": ">0.3.18",
     "moment": "^2.24.0",
     "minimist": "^1.2.2",