acmetool: accept new terms of services

[missytake]

closes #275

[missytake]

Hm:

[staging.testrun.org] 20240501084846 [INFO] acmetool.solver: unsuccessful challenge: authorization "https://acme-v02.api.letsencrypt.org/acme/authz-v3/345290948547" challenge "https://acme-v02.api.letsencrypt.org/acme/chall-v3/345290948547/ViSO6A" failed into final non-valid status invalid [due to inner error: (problem (type "urn:ietf:params:acme:error:caa") (instance "") (id <nil>) (title ""): (detail "CAA record for www.staging.testrun.org prevents issuance"))]

[missytake]

Ah, TLS cert couldn't be issued because I reset the acme state, but the CAA record still belonged to the acme state of the previous VM. I manually fixed the CAA record on ns.testrun.org and restarted the CI run.