Use process timer for jest timeout testing

What does this MR do?

Using Date to measure time has some drawbacks. This MR updatese our jest timeout helper to use the recommended Node process.hrtime().

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers