Bump lodash from 4.17.4 to 4.17.19 (#76)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.4 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.4...4.17.19)

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

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

Author: dependabot[bot]

package.json

@@ -27,7 +27,7 @@
     "hubot-slack-utils": "0.0.5",
     "hubot-slack-whitelist-middleware": "^1.0.1",
     "hubot-youtube": "^1.0.2",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.19",
     "moment": "^2.19.3"
   },
   "scripts": {

yarn.lock

@@ -831,13 +831,9 @@ lodash@^3.10.1:
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
-lodash@^4.13.1:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
-
-lodash@^4.17.4:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+lodash@^4.13.1, lodash@^4.17.19:
+  version "4.17.19"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
 
 log@1.4.0:
   version "1.4.0"