[YSQL] Use AWS clockbound daemon to get more precise error bounds for the clock skew

[pao214]

Jira Link: DB-11470

Description

Reference: https://github.com/aws/clock-bound

There is an order of magnitude difference between using clock bound vs. ntp_adjtime system call that the NtpClock uses. Using the daemon is a precursor to solving #22317.

This will enable the following in cloud environments

1. Provide external consistency (as defined by spanner), thus solving the causal reverse problem.
2. Remove read restart errors altogether.

Issue Type

kind/bug

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[pao214]

Duplicate of #21963.