fix some <= author queries - nostrdb-rs

commit 75f955f53d09a49d186509560906a868d17f5c33
parent 5de4351dc0ebf93e57c22fd2e6a4b64a9fceb9f0
Author: William Casarin <jb55@jb55.com>
Date:   Tue, 29 Apr 2025 16:03:59 -0700

fix some <= author queries

Signed-off-by: William Casarin <jb55@jb55.com>

	nostrdb-rs nostrdb in rust!
	git clone git://jb55.com/nostrdb-rs
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