feat: Add ability to broadcast daft metrics over HTTP

[raunakab]

Overview

This PR adds the ability of broadcasting the serialized Mermaid query plan over port 3238.
Receiving services can listen to this TCP broadcast over 3238, read the data, and process/present it.

This will be useful for the dashboard, which will (through another proxy service) be listening over 3238 for the plan, so that it can display it to the end-user.

Notes

This is a refreshed version of this closed PR.

Port choice

The default port to broadcast on was chosen to be 3238. The reason here being because that is daft spelled over the telephone's alphanumeric keypad.

[codspeed-hq]

CodSpeed Performance Report

Merging #3778 will degrade performances by 18.04%

_{Comparing broadcast-metrics (8157579) with main (8759b62)}

Summary

⚡ 1 improvements
❌ 1 regressions
✅ 25 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	test_iter_rows_first_row[100 Small Files]	178.9 ms	218.3 ms	-18.04%
⚡	test_show[100 Small Files]	23.8 ms	15.9 ms	+49.59%

[codecov]

Codecov Report

Attention: Patch coverage is 67.56757% with 12 lines in your changes missing coverage. Please review.

Project coverage is 77.85%. Comparing base (8759b62) to head (ca81621).

Files with missing lines	Patch %	Lines
daft/dataframe/dataframe.py	67.56%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3778      +/-   ##
==========================================
+ Coverage   75.59%   77.85%   +2.26%     
==========================================
  Files         739      740       +1     
  Lines       97206    93803    -3403     
==========================================
- Hits        73484    73034     -450     
+ Misses      23722    20769    -2953     

Files with missing lines	Coverage Δ
daft/dataframe/dataframe.py	84.86% <67.56%> (-0.65%)	⬇️

... and 45 files with indirect coverage changes

[jaychia]

I still think this is wrong because most of the functions f will add to the plan before execution. E.g. write_parquet will add a write parquet node to the plan.

[raunakab]

Closing in favour of #3790.