How to reset the upload key for a react native expo app that will be used to sign APKs to upload to Google Play?

I reach out to google and they sent me this:

Here’s how to generate and register a new upload key:

1. Follow the instructions in the Android Studio Help Center to generate a new key. It must be different from any previous keys. Alternatively, you can use the following command line to generate a new key:

keytool -genkeypair -alias upload -keyalg RSA -keysize 2048 -validity 9125 -keystore keystore.jks

This key must be a 2048 bit RSA key and have 25-year validity.

2. Export the certificate for that key to PEM format:

keytool -export -rfc -alias upload -file upload_certificate.pem -keystore keystore.jks

3. Send us the upload_certificate.pem file.

My question is how to do this with a react native expo app?