feat(sql): Adds FROM source check for string paths

[rchowell]

This PR introduces a check on the FROM source to error when using string literal syntax (single-quoted identifiers). This PR will no longer be a draft once table path strings are added (see skipped tests).

closes #3197

[codspeed-hq]

CodSpeed Performance Report

Merging #3679 will improve performances by 12.43%

_{Comparing rchowell/df-254-sql-support-for-path-as-from-source (87aceda) with main (0e03303)}

Summary

⚡ 1 improvements
✅ 26 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	rchowell/df-254-sql-support-for-path-as-from-source	Change
⚡	test_count[1 Small File]	3.9 ms	3.5 ms	+12.43%

[codecov]

Codecov Report

Attention: Patch coverage is 96.61017% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.42%. Comparing base (c932ec9) to head (87aceda).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/daft-sql/src/planner.rs	96.61%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3679      +/-   ##
==========================================
- Coverage   78.06%   76.42%   -1.64%     
==========================================
  Files         728      726       -2     
  Lines       89967    92397    +2430     
==========================================
+ Hits        70236    70618     +382     
- Misses      19731    21779    +2048     

Files with missing lines	Coverage Δ
src/daft-sql/src/planner.rs	74.49% <96.61%> (+0.60%)	⬆️

... and 40 files with indirect coverage changes

[universalmind303]

tip: you can also get the unquoted value via object_name.0[0].value

[rchowell]

addressed in: #3683

[universalmind303]

Looks good. thanks @rchowell