Decrypt check_mk_agent output with v2.3

Hello!

We are using CheckMK v2.3.0 with encryption on Linux (RHEL8/9).
With CheckMK v2.2 we could use something like

check_mk_agent | tail --bytes=+3 | openssl enc -d -aes-256-cbc -md md5 -iter 10000 -k passw0rd

to show the decrypted output of check_mk_agent. This doesn’t work any more with v2.3. How can we decrypt the output of check_mk_agent in v2.3?

checkmk/doc/treasures/agent_legacy_encryption/decrypt.sh at master · Checkmk/checkmk · GitHub does this