[FEAT] print more info when hitting todo in stage planner

[samster25]

• Print node type when hitting todo in execution stage planner

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 46 lines in your changes missing coverage. Please review.

Project coverage is 62.91%. Comparing base (0f748ed) to head (110914b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2416      +/-   ##
==========================================
- Coverage   62.93%   62.91%   -0.02%     
==========================================
  Files         938      938              
  Lines      104652   104659       +7     
==========================================
- Hits        65858    65851       -7     
- Misses      38794    38808      +14     

Files	Coverage Δ
src/daft-execution/src/stage/planner.rs	0.00% <0.00%> (ø)

... and 7 files with indirect coverage changes