cdc: rename inner "process_cells" to avoid confusion
cdc: rename inner "process_cells" to avoid confusion

Two lambdas should not share name in same function.

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