Update Node.js version in Android docs from 18 to 22 (#7542)

Author: SuitDeer

docs/android.md

@@ -14,8 +14,8 @@ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.0/install.sh | bash
 7. Install and use Node.js 22:
 
 ```shell
-nvm install 18
-nvm use 18
+nvm install 22
+nvm use 22
 ```
 
 8. Install code-server globally on device with: `npm install --global code-server`