tests: made segment size smaller in random_node_operations_test

Signed-off-by: Michał Maślanka <[email protected]>
(cherry picked from commit 9d885f5)

tests/rptest/tests/random_node_operations_test.py

@@ -56,6 +56,8 @@ def __init__(self, test_context, *args, **kwargs):
                 # set disk timeout to value greater than max suspend time
                 # not to emit spurious errors
                 "raft_io_timeout_ms": 20000,
+                "compacted_log_segment_size": 1024 * 1024,
+                "log_segment_size": 2 * 1024 * 1024,
             },
             # 2 nodes for kgo producer/consumer workloads
             node_prealloc_count=3,