v1.16: Adds default info to cli arg for --accounts-hash-cache-path (backport of #33331)

[mergify]

This is an automatic backport of pull request #33331 done by Mergify.
Cherry-pick of 1d39c31 has failed:

On branch mergify/bp/v1.16/pr-33331
Your branch is up to date with 'origin/v1.16'.

You are currently cherry-picking commit 1d39c3167d.
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Changes to be committed:
	modified:   validator/src/cli.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   ledger-tool/src/main.rs

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[brooksprumo]

Blocked until quinn is updated (#33350)

Edit: Done

[brooksprumo]

@willhickey Tagging you for review and as an FYI. Once the quinn PR is merged, I'll rebase this one.

[brooksprumo]

@willhickey Ok, this is ready for review now. Thanks!

[willhickey]

Approved for v1.16