Automate sending EC2 Instance Connect public keys

[FarrOut]

Currently the command to send-ssh-public-key is although printed as an Output, still needs to be executed manually by the user.

        send_key_command = f"aws ec2-instance-connect send-ssh-public-key --instance-id {bastion.instance_id} --instance-os-user {bastion_user} --ssh-public-key file://{public_key_key} --availability-zone {az}"
        CfnOutput(self, 'SendPublicSshKeyCommand',
                  value=send_key_command,
                  description='Command to send public SSH key to Bastion.',
                  )

        ssh_command = f"ssh -o \"IdentitiesOnly=yes\" -i {private_key_path} {bastion_user}@{bastion.instance_public_dns_name}"
        CfnOutput(self, 'BastionSSHcommand',
                  value=ssh_command,
                  description='Command to SSH into Bastion.',
                  )

It would be nice if this was taken care of seamlessly during deployment. Step Functions perhaps??