Update dependency @types/highlight.js to v9.12.4 (#378)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -25,7 +25,7 @@
     "@sourcegraph/tslint-config": "^13.4.0",
     "@types/express": "4.17.4",
     "@types/got": "9.6.11",
-    "@types/highlight.js": "9.12.3",
+    "@types/highlight.js": "9.12.4",
     "@types/ini": "1.3.30",
     "@types/jaeger-client": "3.15.3",
     "@types/json5": "0.0.30",

yarn.lock

@@ -980,10 +980,10 @@
     "@types/tough-cookie" "*"
     form-data "^2.5.0"
 
-"@types/highlight.js@9.12.3":
-  version "9.12.3"
-  resolved "https://registry.npmjs.org/@types/highlight.js/-/highlight.js-9.12.3.tgz#b672cfaac25cbbc634a0fd92c515f66faa18dbca"
-  integrity sha512-pGF/zvYOACZ/gLGWdQH8zSwteQS1epp68yRcVLJMgUck/MjEn/FBYmPub9pXT8C1e4a8YZfHo1CKyV8q1vKUnQ==
+"@types/highlight.js@9.12.4":
+  version "9.12.4"
+  resolved "https://registry.npmjs.org/@types/highlight.js/-/highlight.js-9.12.4.tgz#8c3496bd1b50cc04aeefd691140aa571d4dbfa34"
+  integrity sha512-t2szdkwmg2JJyuCM20e8kR2X59WCE5Zkl4bzm1u1Oukjm79zpbiAv+QjnwLnuuV0WHEcX2NgUItu0pAMKuOPww==
 
 "@types/http-cache-semantics@*":
   version "4.0.0"