CI: clean test dirs, reset `collisionXZ` checksums#5120

Merged

ax3l merged 3 commits intoECP-WarpX:developmentfrom EZoni:EZoni_runtest_clean

Aug 8, 2024

+25-16

Commits on Aug 7, 2024

CI: add option to clean up test dirs
EZoni
committed

Commits on Aug 8, 2024