chore(deps): update dependency sourcegraph to v23 (#98)

Author: renovate[bot]

package.json

@@ -79,7 +79,7 @@
     "rimraf": "^2.6.2",
     "semantic-release": "^15.6.3",
     "sinon": "^7.0.0",
-    "sourcegraph": "^22.0.0",
+    "sourcegraph": "^23.0.0",
     "ts-node": "^7.0.0",
     "tslint": "^5.10.0",
     "typescript": "^3.2.1",

yarn.lock

@@ -6929,10 +6929,10 @@ source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
   integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
-sourcegraph@^22.0.0:
-  version "22.0.0"
-  resolved "https://registry.yarnpkg.com/sourcegraph/-/sourcegraph-22.0.0.tgz#b259929c31bf367f5160056698a881dc26eb36bd"
-  integrity sha512-cJHby0OPCM0y0BmRTKhY89D02f9koROluHMJGQGNE8q9CoIVbe1s6ctHCytz7bjY9mKtCpQMbtxYQhfIm5S4lg==
+sourcegraph@^23.0.0:
+  version "23.0.0"
+  resolved "https://registry.yarnpkg.com/sourcegraph/-/sourcegraph-23.0.0.tgz#1fb96015af3e84cc9cc2944823f04a7e952ed565"
+  integrity sha512-hQALHrTt+AK5ZAqUAUNhxO7ClSv/xyTjMQPBb+hQykKJrMaHTk+CnJNHs7dRfXYKnbnZeisQRjaxKGX8UecU0Q==
 
 spawn-error-forwarder@~1.0.0:
   version "1.0.0"