Inconsistent documentation in compaction period comments

[wodeyoulai]

Bug report criteria

• This bug report is not security related, security issues should be disclosed privately via etcd maintainers.
• This is not a support request or question, support requests or questions should be raised in the etcd discussion forums.
• You have read the etcd bug reporting guidelines.
• Existing open issues along with etcd frequently asked questions have been checked and this is not a duplicate.

What happened?

There appears to be an inconsistency in the comments describing the compaction period logic. In the current implementation, the comments show conflicting time periods:

Current comments:

Compaction period 24-hour:
  1. compute compaction period, which is 1-hour      // Inconsistent with 24-hour period
  2. record revisions for every 1/10 of 1-hour (6-minute)  // Should be 1/10 of 24-hour (144-minute)
  3. keep recording revisions with no compaction for first 24-hour
  4. do compact with revs[0]
    - success? continue on for-loop and move sliding window; revs = revs[1:]
    - failure? update revs, and retry after 1/10 of 1-hour (6-minute)  // Should be 144-minute

### What did you expect to happen?

Compaction period 24-hour:
  1. compute compaction period, which is 24-hour
  2. record revisions for every 1/10 of 24-hour (144-minute)
  3. keep recording revisions with no compaction for first 24-hour
  4. do compact with revs[0]
    - success? continue on for-loop and move sliding window; revs = revs[1:]
    - failure? update revs, and retry after 1/10 of 24-hour (144-minute)

### How can we reproduce it (as minimally and precisely as possible)?

server/etcdserver/api/v3compactor/periodic.go

### Anything else we need to know?

_No response_

### Etcd version (please run commands below)

<details>

```console
$ etcd --version
latest

$ etcdctl version
# paste output here

Etcd configuration (command line flags or environment variables)

paste your configuration here

Etcd debug information (please run commands below, feel free to obfuscate the IP address or FQDN in the output)

$ etcdctl member list -w table
# paste output here

$ etcdctl --endpoints=<member list> endpoint status -w table
# paste output here

Relevant log output

No response