[PWGHF] Bugfix taskLc: check mlProb vector size for correct PKPi/PiKP hypothesis · AliceO2Group/O2Physics@f2f791e

No updates were made to PR body

New title: "[PWGHF] Bugfix taskLc: check mlProb vector size for correct PKPi/PiKP hypothesis".

The PR title prefix with tags needs to be added or adjusted.