[FEAT] Expose coerce_int96_timestamp_unit flag on top level daft.read_parquet call

[samster25]

closes: #1894

[clarkzinzow]

@samster25 Just pushed a commit that should fix the non-MicroPartition path!

[clarkzinzow]

@samster25 Looks like the non-MicroPartition path is still broken, not sure what the required fix is.

[jaychia]

This LGTM, good to merge once we rebase on main which no longer has the old MicroPartition=0 tests

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 83.92%. Comparing base (cc7b957) to head (cedc826).

❗ Current head cedc826 differs from pull request most recent head b844b7e. Consider uploading reports for the commit b844b7e to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1936      +/-   ##
==========================================
+ Coverage   83.90%   83.92%   +0.02%     
==========================================
  Files          55       55              
  Lines        6112     6115       +3     
==========================================
+ Hits         5128     5132       +4     
+ Misses        984      983       -1     

Files	Coverage Δ
daft/io/_parquet.py	95.45% <80.00%> (-4.55%)	⬇️

... and 1 file with indirect coverage changes