chore(deps): update dependency @types/mocha to v5.2.6

Author: renovate-bot

package.json

@@ -106,7 +106,7 @@
     "@sourcegraph/tslint-config": "^12.3.1",
     "@types/expect": "1.20.4",
     "@types/lodash": "4.14.121",
-    "@types/mocha": "5.2.5",
+    "@types/mocha": "5.2.6",
     "@types/node": "10.12.18",
     "@types/sinon": "7.0.7",
     "expect": "^24.1.0",

yarn.lock

@@ -905,10 +905,10 @@
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.121.tgz#9327e20d49b95fc2bf983fc2f045b2c6effc80b9"
   integrity sha512-ORj7IBWj13iYufXt/VXrCNMbUuCTJfhzme5kx9U/UtcIPdJYuvPDUAlHlbNhz/8lKCLy9XGIZnGrqXOtQbPGoQ==
 
-"@types/[email protected].5":
-  version "5.2.5"
-  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-5.2.5.tgz#8a4accfc403c124a0bafe8a9fc61a05ec1032073"
-  integrity sha512-lAVp+Kj54ui/vLUFxsJTMtWvZraZxum3w3Nwkble2dNuV5VnPA+Mi2oGX9XYJAaIvZi3tn3cbjS/qcJXRb6Bww==
+"@types/[email protected].6":
+  version "5.2.6"
+  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-5.2.6.tgz#b8622d50557dd155e9f2f634b7d68fd38de5e94b"
+  integrity sha512-1axi39YdtBI7z957vdqXI4Ac25e7YihYQtJa+Clnxg1zTJEaIRbndt71O3sP4GAMgiAm0pY26/b9BrY4MR/PMw==
 
 "@types/[email protected]":
   version "10.12.18"