Added date_time_utc Parameter for JSON Log Formatting in UTC Date-Time Format

Why it matters

This feature allows users to have JSON logs with standardized UTC date-time stamps formatted according to the RFC 3339/ISO8601 standard, improving log consistency and easier integration with tools that expect this widely-adopted time format.

How to use it

Set the date_time_utc parameter to true in the configuration to enable JSON log formatting with UTC date-time in RFC 3339/ISO8601 format.