fix(UnixSecondSerializer.Value): Avoid panic when handling unsigned integer values (#7608)

* fix reflection panic

* testing

* fix: do not pass a nil Context

* //nolint: gosec

* reduce cyclomatic complexity

* add a type assertion safety check for time.Time

Co-authored-by: propel-code-bot[bot] <203372662+propel-code-bot[bot]@users.noreply.github.com>

* test coverage for integer overflow edge case

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Co-authored-by: david_du <david.du@yuansuan.com>
Co-authored-by: propel-code-bot[bot] <203372662+propel-code-bot[bot]@users.noreply.github.com>