chore(deps): update dependency @types/chai to v4.2.12

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": "4.2.11",
+    "@types/chai": "4.2.12",
     "@types/karma": "4.4.1",
     "@types/karma-webpack": "2.0.7",
     "@types/lodash": "4.14.157",

yarn.lock

@@ -470,10 +470,10 @@
   resolved "https://registry.yarnpkg.com/@types/bluebird/-/bluebird-3.5.24.tgz#11f76812531c14f793b8ecbf1de96f672905de8a"
   integrity sha512-YeQoDpq4Lm8ppSBqAnAeF/xy1cYp/dMTif2JFcvmAbETMRlvKHT2iLcWu+WyYiJO3b3Ivokwo7EQca/xfLVJmg==
 
-"@types/[email protected].11":
-  version "4.2.11"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.11.tgz#d3614d6c5f500142358e6ed24e1bf16657536c50"
-  integrity sha512-t7uW6eFafjO+qJ3BIV2gGUyZs27egcNRkUdalkud+Qa3+kg//f129iuOFivHDXQ+vnU3fDXuwgv0cqMCbcE8sw==
+"@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/color-name@^1.1.1":
   version "1.1.1"