Update ROOT class checksum for L1DataEmulRecord

ROOT 5.34.20 changed how class checksums are calculated. This changed
the checksum for L1DataEmulRecord which meant we needed to update our
classes_def.xml with a new version and checksum.
Merge pull request #5484 from Dr15Jones/updateRootChecksumDataFormatsL1Trigger

Update ROOT class checksum for L1DataEmulRecord