[fix][broker] Fix return the earliest position when query position by timestamp.#1

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hanmz wants to merge 5 commits intomasterfrom

fix-opFindNewest

Commits on Jun 1, 2023

Fix return the earliest position when query position by timestamp.
hanmz
committed

Commits on Jun 26, 2023

Fix return the earliest position when query position by timestamp.
hanmz
committed

Commits on Jun 28, 2023

Remove unnecessary sleep
hanmz
committed

Commits on Jun 29, 2023