chore(deps-dev): Bump @typescript-eslint/parser from 2.19.2 to 2.21.0

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 2.19.2 to 2.21.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/parser/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v2.21.0/packages/parser)

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

yarn.lock

@@ -1377,15 +1377,6 @@
     regexpp "^3.0.0"
     tsutils "^3.17.1"
 
-"@typescript-eslint/experimental-utils@2.19.2":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-2.19.2.tgz#4611d44cf0f0cb460c26aa7676fc0a787281e233"
-  integrity sha512-B88QuwT1wMJR750YvTJBNjMZwmiPpbmKYLm1yI7PCc3x0NariqPwqaPsoJRwU9DmUi0cd9dkhz1IqEnwfD+P1A==
-  dependencies:
-    "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/typescript-estree" "2.19.2"
-    eslint-scope "^5.0.0"
-
 "@typescript-eslint/experimental-utils@2.21.0":
   version "2.21.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-2.21.0.tgz#71de390a3ec00b280b69138d80733406e6e86bfa"
@@ -1396,27 +1387,14 @@
     eslint-scope "^5.0.0"
 
 "@typescript-eslint/parser@^2.14.0":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-2.19.2.tgz#21f42c0694846367e7d6a907feb08ab2f89c0879"
-  integrity sha512-8uwnYGKqX9wWHGPGdLB9sk9+12sjcdqEEYKGgbS8A0IvYX59h01o8os5qXUHMq2na8vpDRaV0suTLM7S8wraTA==
+  version "2.21.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-2.21.0.tgz#4f200995517c3d5fc5ef51b17527bc948992e438"
+  integrity sha512-VrmbdrrrvvI6cPPOG7uOgGUFXNYTiSbnRq8ZMyuGa4+qmXJXVLEEz78hKuqupvkpwJQNk1Ucz1TenrRP90gmBg==
   dependencies:
     "@types/eslint-visitor-keys" "^1.0.0"
-    "@typescript-eslint/experimental-utils" "2.19.2"
-    "@typescript-eslint/typescript-estree" "2.19.2"
-    eslint-visitor-keys "^1.1.0"
-
-"@typescript-eslint/typescript-estree@2.19.2":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-2.19.2.tgz#67485b00172f400474d243c6c0be27581a579350"
-  integrity sha512-Xu/qa0MDk6upQWqE4Qy2X16Xg8Vi32tQS2PR0AvnT/ZYS4YGDvtn2MStOh5y8Zy2mg4NuL06KUHlvCh95j9C6Q==
-  dependencies:
-    debug "^4.1.1"
+    "@typescript-eslint/experimental-utils" "2.21.0"
+    "@typescript-eslint/typescript-estree" "2.21.0"
     eslint-visitor-keys "^1.1.0"
-    glob "^7.1.6"
-    is-glob "^4.0.1"
-    lodash "^4.17.15"
-    semver "^6.3.0"
-    tsutils "^3.17.1"
 
 "@typescript-eslint/typescript-estree@2.21.0":
   version "2.21.0"