fix(sweeps): sweeps schedulers handles multi word parameters

[gtarpenning]

Fixes https://wandb.atlassian.net/browse/WB-11742

Description

We slightly modify an existing hack-y parameter ingesting mechanism to support multi-word params, exposed when pushing to a queue that had spaces in the name.

This does not solve the case where backslashes are in the name, we escape them properly on the backend, but then assume they are already escaped when printing, resulting in half as many backslashes. We should probably just tell users in the frontend they can't use backslashes. I don't think XSS is possible here but why would anyone want a backslash in the name if they weren't doing something nefarious?

[codecov]

Codecov Report

Merging #4640 (272ed98) into main (4c9654f) will increase coverage by 0.04%.
The diff coverage is n/a.

❗ Current head 272ed98 differs from pull request most recent head aa97854. Consider uploading reports for the commit aa97854 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4640      +/-   ##
==========================================
+ Coverage   83.17%   83.21%   +0.04%     
==========================================
  Files         279      279              
  Lines       34917    34917              
==========================================
+ Hits        29041    29057      +16     
+ Misses       5876     5860      -16     

Flag	Coverage Δ
functest	56.07% <ø> (+0.03%)	⬆️
unittest	73.78% <ø> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
wandb/cli/cli.py	69.30% <ø> (ø)
wandb/filesync/step_prepare.py	93.67% <0.00%> (-1.27%)	⬇️
wandb/sdk/lib/git.py	77.71% <0.00%> (-0.61%)	⬇️
wandb/apis/public.py	81.87% <0.00%> (-0.10%)	⬇️
wandb/sdk/wandb_run.py	90.83% <0.00%> (+0.82%)	⬆️
wandb/__init__.py	92.30% <0.00%> (+0.96%)	⬆️
wandb/sdk/internal/system/system_info.py	91.55% <0.00%> (+3.24%)	⬆️