npm: bump @types/vscode from 1.103.0 to 1.115.0 in /vscode-extension

Bumps [@types/vscode](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/vscode) from 1.103.0 to 1.115.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/vscode)

---
updated-dependencies:
- dependency-name: "@types/vscode"
  dependency-version: 1.115.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

vscode-extension/package-lock.json

@@ -56,7 +56,7 @@
     },
     "devDependencies": {
         "@types/node": "^20.19.39",
-        "@types/vscode": "^1.103.0",
+        "@types/vscode": "^1.115.0",
         "typescript": "^6.0.2",
         "@vscode/test-electron": "^2.5.2",
         "@vscode/vsce": "^3.7.1",