Update dependency chai-as-promised to v8

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "babel-preset-flow": "^6.23.0",
     "babel-register": "^6.24.1",
     "chai": "^4.2.0",
-    "chai-as-promised": "^7.1.1",
+    "chai-as-promised": "^8.0.0",
     "eslint-plugin-flowtype": "^5.2.0",
     "fetch-mock": "^9.11.0",
     "flow-bin": "^0.256.0",

yarn.lock

@@ -1159,12 +1159,12 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-chai-as-promised@^7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-7.1.1.tgz#08645d825deb8696ee61725dbf590c012eb00ca0"
-  integrity sha512-azL6xMoi+uxu6z4rhWQ1jbdUhOMhis2PvscD/xjLqNMkv3BPPp2JyyuTHOrf9BOosGpNQ11v6BKv/g57RXbiaA==
+chai-as-promised@^8.0.0:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-8.0.1.tgz#8913b2fd685b3f5637d25f627518e3ac9614d8e1"
+  integrity sha512-OIEJtOL8xxJSH8JJWbIoRjybbzR52iFuDHuF8eb+nTPD6tgXLjRqsgnUGqQfFODxYvq5QdirT0pN9dZ0+Gz6rA==
   dependencies:
-    check-error "^1.0.2"
+    check-error "^2.0.0"
 
 chai@^4.2.0:
   version "4.2.0"
@@ -1211,6 +1211,11 @@ check-error@^1.0.2:
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
   integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
 
+check-error@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/check-error/-/check-error-2.1.1.tgz#87eb876ae71ee388fa0471fe423f494be1d96ccc"
+  integrity sha512-OAlb+T7V4Op9OwdkjmguYRqncdlx5JiofwOAUkmTF+jNdHwzTaTs4sRAGpzLF3oOz5xAyDGrPgeIDFQmDOTiJw==
+
 cliui@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"