tests: mutation_source_tests: Verify monotonicty of positions
tests: mutation_source_tests: Verify monotonicty of positions

avikivity/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla,duarten/scylla,duarten/scylla,avikivity/scylla,avikivity/scylla,duarten/scylla