pageserver: increase rate limit duration for layer visit log

[VladLazar]

Problem

I'd like to keep this in the tree since it might be useful in prod as well.
It's a bit too noisy as is and missing the lsn.

Summary of changes

Add an lsn field and and increase the rate limit duration.

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.
• Do we need to implement analytics? if so did you add the relevant metrics to the dashboard?
• If this PR requires public announcement, mark it with /release-notes label and add several sentences in this section.

Checklist before merging

• Do not forget to reformat commit message to not include the above checklist

[koivunej]

Changing the ratelimit 10s -> 60s oki.

[github-actions]

3006 tests run: 2891 passed, 0 failed, 115 skipped (full report)

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Flaky tests (1)

Postgres 14

• test_subscriber_restart: release

Code coverage* (full report)

• functions: 32.7% (6936 of 21223 functions)
• lines: 50.1% (54444 of 108707 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
32de20e at 2024-07-04T11:50:19.950Z :recycle:}