CP2K use calcs_reversed[0] instead of calcs_reversed[-1] to not reverse again

[janosh]

Closes #533.

[codecov]

Codecov Report

Merging #534 (4daec30) into main (ecf80af) will not change coverage.
Report is 3 commits behind head on main.
The diff coverage is 0.00%.

❗ Current head 4daec30 differs from pull request most recent head 7010032. Consider uploading reports for the commit 7010032 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #534   +/-   ##
=======================================
  Coverage   75.26%   75.26%           
=======================================
  Files          74       74           
  Lines        6577     6577           
  Branches      953      953           
=======================================
  Hits         4950     4950           
  Misses       1327     1327           
  Partials      300      300           

Files	Coverage Δ
src/atomate2/forcefields/jobs.py	92.43% <ø> (ø)
src/atomate2/forcefields/schemas.py	91.66% <ø> (ø)
src/atomate2/cp2k/schemas/task.py	82.72% <0.00%> (ø)