[Bug]: step ca rekey does not create new keys when used with the --daemon flag

[mikerquinn]

Steps to Reproduce

step ca rekey ssl-cert.pem ssl-cert.key --force --exec post_renew.sh works like it should but
step ca rekey ssl-cert.pem ssl-cert.key --force --exec post_renew.sh --rekey-period 1m --daemon just renews without a new key

Your Environment

• OS - Linus Ubuntu 24.04
• step CLI Version - Smallstep CLI/0.27.2 (linux/amd64)
  Release Date: 2024-7-18T18:15:09Z

Expected Behavior

I expected the certificate to be renewed with a new private key.

Actual Behavior

It is renewed with the same key, same as if you had run step ca renew. This only happens when running with the --daemon flag.

Additional Context

Brought this up on the Discord and "Dopey" requested that I put in an issue.

Contributing

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