New CI flow: Check package against specific CRAN snapshot(s). #61

All 6 tests pass, 1 skipped in 1m 21s

1 files ±0 6 suites ±0 1m 21s ⏱️ -4s
7 tests ±0 6 ✅ ±0 1 💤 ±0 0 ❌ ±0
11 runs ±0 10 ✅ ±0 1 💤 ±0 0 ❌ ±0

Results for commit 355b14e. ± Comparison against earlier commit 85770bb.