Format test report times to adjust for ms

What does this MR do?

Related to #213101 (closed)

This is fixing an issue when our test report duration time is less than a second and it shows 00:00:00.

In this solution, we show the time in milliseconds if the time is less than a second, otherwise we show the time in seconds. We also fix the decimal point to 2 digits to keep things clean.

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Before	After

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