I have been trying to spin up MAC2 EC2 AMI using the Jenkins EC2 plugin which has a hard requirement to have the ssh key type as ED25519.

We were able to create the machines directly with the ED15519 keytype and and able to create a base AMI out of that.

But when I configure the ED25519 key in Jenkins and trying to use that as a 
EC2 Key Pair's Private Key it comes with the below error,
 

This doesn't look like a private key at all

Apr 05, 2023 9:26:39 AM WARNING hudson.plugins.ec2.EC2Cloud getNewOrExistingAvailableSlave
SlaveTemplate{description='builder', labels='builder'}. Exception during provisioning
java.io.IOException: unrecognised object: OPENSSH PRIVATE KEY

The key is with,

-----BEGIN OPENSSH PRIVATE KEY-----
-----END OPENSSH PRIVATE KEY----- 

Any idea how to solve this ?

searched through existing bugs reported but none provide a valid solution for the same.