Replace `km3net_testdata/data/offline/mcv5.0.gsg_elec-CC_10-100GeV.km3sim.JDK.jte.jmergefit.orca.908.evtsample.root`

Due to an issue with the extraction of the subsample of 10 events, the reconstruction information was not included correctly in the offline file km3net_testdata/data/offline/mcv5.0.gsg_elec-CC_10-100GeV.km3sim.JDK.jte.jmergefit.orca.908.evtsample.root which was added to km3net-testdata in !24 (merged). This merge request replaces the file with an equivalent offline file where the reco-info is included correctly. I will try to create some tests for this file in <km3io>/tests/test_offline.py.