chore(deps): update dependency @types/chai to v4.2.13

Author: renovate-bot

package.json

@@ -43,7 +43,7 @@
     "@sourcegraph/eslint-config": "^0.17.2",
     "@sourcegraph/prettierrc": "^3.0.3",
     "@sourcegraph/tsconfig": "^4.0.1",
-    "@types/chai": "4.2.12",
+    "@types/chai": "4.2.13",
     "@types/karma": "4.4.1",
     "@types/karma-webpack": "2.0.7",
     "@types/lodash": "4.14.161",

yarn.lock

@@ -486,10 +486,10 @@
   resolved "https://registry.yarnpkg.com/@types/bluebird/-/bluebird-3.5.24.tgz#11f76812531c14f793b8ecbf1de96f672905de8a"
   integrity sha512-YeQoDpq4Lm8ppSBqAnAeF/xy1cYp/dMTif2JFcvmAbETMRlvKHT2iLcWu+WyYiJO3b3Ivokwo7EQca/xfLVJmg==
 
-"@types/[email protected].12":
-  version "4.2.12"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.12.tgz#6160ae454cd89dae05adc3bb97997f488b608201"
-  integrity sha512-aN5IAC8QNtSUdQzxu7lGBgYAOuU1tmRU4c9dIq5OKGf/SBVjXo+ffM2wEjudAWbgpOhy60nLoAGH1xm8fpCKFQ==
+"@types/[email protected].13":
+  version "4.2.13"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.13.tgz#8a3801f6655179d1803d81e94a2e4aaf317abd16"
+  integrity sha512-o3SGYRlOpvLFpwJA6Sl1UPOwKFEvE4FxTEB/c9XHI2whdnd4kmPVkNLL8gY4vWGBxWWDumzLbKsAhEH5SKn37Q==
 
 "@types/color-name@^1.1.1":
   version "1.1.1"