`munit` has gotten perceivably slower when bumping `v0.7.29` => `v1.0.0`

[Gedochao]

Version Noticed when bumping munit v0.7.29 => v1.0.0

Replication Haven't got the time to minimise this, but here's what I got:

• check out the Scala CLI repo (https://github.com/VirtusLab/scala-cli/commit/d9055102c6ab55553e784d031969742b3c5419db)
• run the following unit tests with munit v1.0.0:

  ./mill -i 'build-module[].test' 'scala.build.tests.BuildTests*.compile 12k sources for Scala*'

• the tests fail on the CI (GH actions standard runner) and a subset of them also fail on my local machine with a timeout
• what fixes it is increasing munitTimeout from the default 30s to 120s: https://github.com/VirtusLab/scala-cli/pull/2935/commits/d8b5b49adb50f1694a4e9f7fd087732645588828

The test in question is here:

• https://github.com/VirtusLab/scala-cli/blob/d9055102c6ab55553e784d031969742b3c5419db/modules/build/src/test/scala/scala/build/tests/BuildTests.scala#L942-L959

Context I'll still update Scala CLI to munit v1.0.0, as I need the Scala Native 0.5.x support, so can't afford to stay on v0.7.29. Still, I wonder if this performance drop is expected.

• https://github.com/VirtusLab/scala-cli/pull/2935