Bump source-map from 0.7.4 to 0.7.6 in /extensions/ql-vscode

Bumps [source-map](https://github.com/mozilla/source-map) from 0.7.4 to 0.7.6.
- [Release notes](https://github.com/mozilla/source-map/releases)
- [Changelog](https://github.com/mozilla/source-map/blob/master/CHANGELOG.md)
- [Commits](mozilla/source-map@v0.7.4...0.7.6)

---
updated-dependencies:
- dependency-name: source-map
  dependency-version: 0.7.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

extensions/ql-vscode/package-lock.json

@@ -2024,7 +2024,7 @@
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "semver": "^7.6.2",
-    "source-map": "^0.7.4",
+    "source-map": "^0.7.6",
     "source-map-support": "^0.5.21",
     "stream-json": "^1.7.3",
     "styled-components": "^6.1.13",