Update rz_config list variables to set variables

[Farhan-25]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository.
• I made sure to follow the project's coding style.
• I've documented every RZ_API function and struct this PR changes.
• I've added tests that prove my changes are effective (required for changes to RZ_API).
• I've updated the Rizin book with the relevant information (if needed).
• I've used AI tools to generate fully or partially these code changes and I'm sure the changes are not copyrighted by somebody else.

Detailed description

This PR:
--> Changes list variables to set variables in config.
--> This change was required as actually the working of those variables were similar to sets only but we were using lists.
--> As sets support unique values this change prevents duplicate options.
Note : AI was used here just to find the required files to fix this issue.
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Test plan
Unit tests are updated as required.

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Closing issues

closes #6310

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[wargio]

stderr:
test_config: ../librz/util/set.c:123: rz_set_s_size: Assertion `set' failed.

[codecov]

Codecov Report

❌ Patch coverage is 57.35294% with 87 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.01%. Comparing base (4d7ca41) to head (a443e95).
⚠️ Report is 6 commits behind head on dev.

Files with missing lines	Patch %	Lines
librz/config/config.c	51.81%	40 Missing and 13 partials ⚠️
librz/core/cconfig.c	79.59%	8 Missing and 2 partials ⚠️
librz/config/hold.c	0.00%	5 Missing and 2 partials ⚠️
librz/util/set.c	46.15%	3 Missing and 4 partials ⚠️
librz/core/tui/config.c	0.00%	6 Missing ⚠️
librz/core/carch.c	70.00%	3 Missing ⚠️
librz/core/cautocmpl.c	85.71%	0 Missing and 1 partial ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
librz/config/config_internal.h	100.00% <ø> (ø)
librz/config/old_config.c	63.34% <100.00%> (ø)
librz/include/rz_config.h	100.00% <ø> (ø)
librz/core/cautocmpl.c	48.74% <85.71%> (+0.24%)	⬆️
librz/core/carch.c	74.84% <70.00%> (+0.70%)	⬆️
librz/core/tui/config.c	0.00% <0.00%> (ø)
librz/config/hold.c	59.16% <0.00%> (+2.36%)	⬆️
librz/util/set.c	71.08% <46.15%> (-1.78%)	⬇️
librz/core/cconfig.c	80.65% <79.59%> (+0.18%)	⬆️
librz/config/config.c	51.39% <51.81%> (-0.34%)	⬇️

... and 27 files with indirect coverage changes

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