Bump serialport from 9.0.4 to 9.0.7 in /app

Bumps [serialport](https://github.com/serialport/node-serialport) from 9.0.4 to 9.0.7.
- [Release notes](https://github.com/serialport/node-serialport/releases)
- [Changelog](https://github.com/serialport/node-serialport/blob/master/CHANGELOG.md)
- [Commits](https://github.com/serialport/node-serialport/compare/@serialport/bindings@9.0.4...v9.0.7)

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

app/package.json

@@ -42,7 +42,7 @@
   },
   "optionalDependencies": {
     "macos-native-processlist": "^2.0.0",
-    "serialport": "^9.0.4",
+    "serialport": "^9.0.7",
     "windows-blurbehind": "^1.0.1",
     "windows-native-registry": "^3.0.0",
     "windows-process-tree": "^0.2.4"