switch away from thread abort where we can #36

1 fail, 23 skipped, 857 pass in 2h 45m 56s

      4 files ±0   412 suites ±0 2h 45m 56s ⏱️ +10s
  881 tests ±0   857 ✔️ ±0   23 💤 ±0 1 ❌ ±0
4 032 runs ±0 3 897 ✔️ +1 134 💤 ±0 1 ❌ - 1

Results for commit 2350791. ± Comparison against earlier commit 6b2b632.