Bump lodash and @types/lodash

Bumps [lodash](https://github.com/lodash/lodash) and [@types/lodash](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/lodash). These dependencies needed to be updated together.

Updates `lodash` from 4.17.15 to 4.17.21
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.15...4.17.21)

Updates `@types/lodash` from 4.14.156 to 4.17.20
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/lodash)

---
updated-dependencies:
- dependency-name: lodash
  dependency-version: 4.17.21
  dependency-type: direct:production
- dependency-name: "@types/lodash"
  dependency-version: 4.17.20
  dependency-type: direct:production
...

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

Author: dependabot[bot]

yarn.lock

@@ -28,9 +28,9 @@
   integrity sha1-7ihweulOEdK4J7y+UnC86n8+ce4=
 
 "@types/lodash@^4.14.156":
-  version "4.14.156"
-  resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.156.tgz#cbe30909c89a1feeb7c60803e785344ea0ec82d1"
-  integrity sha512-l2AgHXcKUwx2DsvP19wtRPqZ4NkONjmorOdq4sMcxIjqdIuuV/ULo2ftuv4NUpevwfW7Ju/UKLqo0ZXuEt/8lQ==
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.17.20.tgz#1ca77361d7363432d29f5e55950d9ec1e1c6ea93"
+  integrity sha512-H3MHACvFUEiujabxhaI/ImO6gUrd8oOurg7LQtS7mbwIXA/cUqWrvBsaeJ23aZEPk1TAYkurjfMbSELfoCXlGA==
 
 "@types/mocha@^7.0.2":
   version "7.0.2"
@@ -817,9 +817,9 @@ locate-path@^5.0.0:
     p-locate "^4.1.0"
 
 lodash@^4.17.15:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 [email protected]:
   version "3.0.0"