Flakiness in SchedulerSpec

[djspiewak]

[error]   x correctly calculate real time
[error]    16 is greater than 10 (/home/runner/work/cats-effect/cats-effect/tests/js/target/scala-3.2.2/cats-effect-tests-test-fastopt/file:/Users/etorreborre/projects/specs2/specs2-cross/matcher/shared/src/main/scala/org/specs2/matcher/Expectable.scala:50)

Seen in CI.

[armanbilge]

To give some context: we have to do some shenanigans to get micro-second precision time on JS and that test verifies that we didn't screw up the math and it works as we expect. Maybe need to make it less sensitive.

cats-effect/core/js/src/main/scala/cats/effect/unsafe/SchedulerCompanionPlatform.scala

Lines 75 to 77 in 85d6f3c

	browsers.orElse(nodeJS).map[js.Function0[Long]] { performance => () =>
	((performance.timeOrigin + performance.now()) * 1000).toLong
	} getOrElse { () => System.currentTimeMillis() * 1000 }