Merge pull request #1258 from github/dependabot/npm_and_yarn/extensions/ql-vscode/gulp-sourcemaps-3.0.0

Bump gulp-sourcemaps from 2.6.5 to 3.0.0 in /extensions/ql-vscode

Author: aeisenberg

extensions/ql-vscode/package-lock.json

@@ -1190,7 +1190,7 @@
     "glob": "^7.1.4",
     "gulp": "^4.0.2",
     "gulp-replace": "^1.1.3",
-    "gulp-sourcemaps": "^2.6.5",
+    "gulp-sourcemaps": "^3.0.0",
     "gulp-typescript": "^5.0.1",
     "husky": "~4.2.5",
     "jsonc-parser": "^2.3.0",