fix: remove logging for project_batch

[westonpace]

I've noticed that debug / info logging has been flooded lately with things like...

[2025-11-18T14:12:05Z INFO  lance::events] target="lance::execution" type="plan_run" plan_summary="Projection(OneShot)" output_rows=2 iops=0 requests=0 bytes_read=0 indices_loaded=0 parts_loaded=0 index_comparisons=0 
[2025-11-18T14:12:05Z INFO  lance::events] target="lance::execution" type="plan_run" plan_summary="Projection(OneShot)" output_rows=2 iops=0 requests=0 bytes_read=0 indices_loaded=0 parts_loaded=0 index_comparisons=0 
[2025-11-18T14:12:05Z INFO  lance::events] target="lance::execution" type="plan_run" plan_summary="Projection(OneShot)" output_rows=2 iops=0 requests=0 bytes_read=0 indices_loaded=0 parts_loaded=0 index_comparisons=0 
[2025-11-18T14:12:05Z INFO  lance::events] target="lance::execution" type="plan_run" plan_summary="Projection(OneShot)" output_rows=2 iops=0 requests=0 bytes_read=0 indices_loaded=0 parts_loaded=0 index_comparisons=0 
[2025-11-18T14:12:05Z INFO  lance::events] target="lance::execution" type="plan_run" plan_summary="Projection(OneShot)" output_rows=2 iops=0 requests=0 bytes_read=0 indices_loaded=0 parts_loaded=0 index_comparisons=0 

This is because we create and execute a dummy plan to apply projection. This "dummy plan execution" is overly heavyweight on its own and should be optimized (see #5069). However, this short-term patch will at least remove the extraneous logging