chore(deps-dev): bump yarn from 1.17.3 to 1.19.1 (#423)

Author: dependabot-preview[bot]

Diff for: package.json

@@ -43,7 +43,7 @@
     "lint-staged": "^9.0.0",
     "prettier": "1.18.2",
     "typescript": "~3.4.0",
-    "yarn": "1.17.3"
+    "yarn": "1.19.1"
   },
   "workspaces": [
     "packages/*",

Diff for: yarn.lock

@@ -9030,10 +9030,10 @@ yargs@^8.0.2:
     y18n "^3.2.1"
     yargs-parser "^7.0.0"
 
-yarn@1.17.3:
-  version "1.17.3"
-  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.17.3.tgz#60e0b77d079eb78e753bb616f7592b51b6a9adce"
-  integrity sha512-CgA8o7nRZaQvmeF/WBx2FC7f9W/0X59T2IaLYqgMo6637wfp5mMEsM3YXoJtKUspnpmDJKl/gGFhnqS+sON7hA==
+yarn@1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/yarn/-/yarn-1.19.1.tgz#14b92410dd1ba5bab87a12b4a3d807f4569bea97"
+  integrity sha512-gBnfbL9rYY05Gt0cjJhs/siqQXHYlZalTjK3nXn2QO20xbkIFPob+LlH44ML47GcR4VU9/2dYck1BWFM0Javxw==
 
 [email protected]:
   version "2.4.1"