Bump windows-process-tree from 0.3.3 to 0.3.4 in /app

Bumps [windows-process-tree](https://github.com/Microsoft/vscode-windows-process-tree) from 0.3.3 to 0.3.4.
- [Release notes](https://github.com/Microsoft/vscode-windows-process-tree/releases)
- [Commits](https://github.com/Microsoft/vscode-windows-process-tree/compare/0.3.3...0.3.4)

---
updated-dependencies:
- dependency-name: windows-process-tree
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

app/package.json

@@ -40,7 +40,7 @@
     "serialport": "10.4.0",
     "serialport-binding-webserialapi": "^1.0.3",
     "windows-native-registry": "^3.2.1",
-    "windows-process-tree": "^0.3.3"
+    "windows-process-tree": "^0.3.4"
   },
   "devDependencies": {
     "@types/mz": "2.7.4",