Add TOML formatting checks

[xtqqczze]

• Sort keys in TOML files based on JSON Schema metadata
• Alphabetize various lists
• Add Tombi tool to enforce format in CI

[github-actions]

Performance Benchmark Report

Benchmark name	Baseline (μs)	Test/PR (μs)	Delta (μs)	Delta %
clone_shell_object	18.25 μs	18.12 μs	-0.14 μs	⚪ Unchanged
eval_arithmetic	0.13 μs	0.13 μs	0.00 μs	⚪ Unchanged
expand_one_string	1.59 μs	1.61 μs	0.02 μs	⚪ Unchanged
for_loop	28.11 μs	28.23 μs	0.12 μs	⚪ Unchanged
full_peg_complex	55.49 μs	55.97 μs	0.48 μs	⚪ Unchanged
full_peg_for_loop	6.36 μs	6.50 μs	0.14 μs	🟠 +2.25%
full_peg_nested_expansions	16.27 μs	16.48 μs	0.21 μs	⚪ Unchanged
full_peg_pipeline	4.22 μs	4.29 μs	0.07 μs	🟠 +1.64%
full_peg_simple	1.74 μs	1.79 μs	0.05 μs	🟠 +3.17%
function_call	3.54 μs	3.54 μs	0.01 μs	⚪ Unchanged
instantiate_shell	53.24 μs	53.09 μs	-0.14 μs	⚪ Unchanged
instantiate_shell_with_init_scripts	25841.25 μs	25240.77 μs	-600.47 μs	⚪ Unchanged
parse_peg_bash_completion	2243.59 μs	2228.53 μs	-15.05 μs	⚪ Unchanged
parse_peg_complex	19.26 μs	19.25 μs	-0.00 μs	⚪ Unchanged
parse_peg_for_loop	1.93 μs	1.93 μs	0.01 μs	⚪ Unchanged
parse_peg_pipeline	2.05 μs	2.05 μs	-0.00 μs	⚪ Unchanged
parse_peg_simple	1.06 μs	1.11 μs	0.05 μs	🟠 +4.41%
run_echo_builtin_command	13.43 μs	13.37 μs	-0.06 μs	⚪ Unchanged
tokenize_sample_script	3.52 μs	3.94 μs	0.42 μs	🟠 +11.89%

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
Overall Coverage	🟢 75.2%	🟢 75.2%	⚪ 0%

Minimum allowed coverage is 70%, this run produced 75.2%

[reubeno]

Thanks for the contribution, @xtqqczze.

What's the main problem you're trying to solve with these changes? These changes are quite wide-sweeping in what they touch.

[xtqqczze]

@reubeno I've removed some stray formatting changes, and updated the PR description to clarify.