chore(deps-dev): bump lodash from 2.4.2 to 4.17.19

Bumps [lodash](https://github.com/lodash/lodash) from 2.4.2 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@2.4.2...4.17.19)

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

Author: dependabot[bot]

package.json

@@ -76,7 +76,7 @@
     "karma-script-launcher": "1.0.0",
     "karma-spec-reporter": "0.0.32",
     "load-grunt-tasks": "^3.5.0",
-    "lodash": "~2.4.1",
+    "lodash": "~4.17.19",
     "log4js": "^0.6.27",
     "lunr": "^0.7.2",
     "marked": "~0.3.0",

yarn.lock

@@ -6462,10 +6462,10 @@ lodash@^3.10.1, lodash@~3.10.1:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
   integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
 
-lodash@^4.0.0, lodash@^4.13.1, lodash@^4.16.6, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.6.1, lodash@^4.7.0, lodash@^4.8.0:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+lodash@^4.0.0, lodash@^4.13.1, lodash@^4.16.6, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@^4.6.1, lodash@^4.7.0, lodash@^4.8.0, lodash@~4.17.19:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 lodash@~1.0.1:
   version "1.0.2"