Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

WebdriverIO Version

latest

Node.js Version

latest

Mode

Standalone Mode

Which capabilities are you using?

not needed

What happened?

When you've isntalled the latest wdio-appium-service and now run npx start-appium-inspector --port=6543 it will be translated to

npx start-appium-inspector --port=6543 
⏳ Checking inspector plugin...
🚀 Starting Appium server...
📡 Command: /Users/wimselles/Git/wdio/appium-boilerplate/node_modules/appium/index.js server --port=6543 --port=6543 --log-timestamp --use-plugins=inspector --allow-cors
⏳ Waiting for Appium server to be ready...
ℹ️  Press Ctrl+C to stop Appium server and exit

As you can see the port is added twice, this needs to be done once

What is your expected behavior?

only one custom port needs to be added to the arguments

How to reproduce the bug.

See above

Relevant log output

npx start-appium-inspector --port=6543
⏳ Checking inspector plugin...
🚀 Starting Appium server...
📡 Command: /Users/wimselles/Git/wdio/appium-boilerplate/node_modules/appium/index.js server --port=6543 --port=6543 --log-timestamp --use-plugins=inspector --allow-cors
⏳ Waiting for Appium server to be ready...
ℹ️  Press Ctrl+C to stop Appium server and exit

Code of Conduct

• I agree to follow this project's Code of Conduct

Is there an existing issue for this?

• I have searched the existing issues