Add suffix to label for _ledger_chunks within partitions_test (#7686)

Author: eddyashton

tests/partitions_test.py

@@ -914,6 +914,8 @@ def run_ledger_chunk_bytes_check(const_args):
     LOG.info("Confirm that ledger chunks are determined by the primary")
     args = copy.deepcopy(const_args)
 
+    args.label += "_ledger_chunks"
+
     # Don't emit snapshots
     args.snapshot_tx_interval = 10000000