chore: ack unmaintained crate error

[reubeno]

number_prefix is now marked as unmaintained and flagging RUSTSEC errors via cargo deny. Our dependency on this crate is coming through uucore.

Thankfully, the uucore folks are on top of this! They've already merged uutils/coreutils#9322, which replaces use with a maintained crate. Until we can receive that change, we're acknowledging the issue and updating our deny.toml to ignore this specific advisory.

As soon as uucore distributes a new release with this change, Dependabot should flag us to update and we'll update to it and remove this temporary ignore.

[github-actions]

Test Results

    3 files     23 suites   7m 16s ⏱️
1 132 tests 1 132 ✅ 0 💤 0 ❌
3 376 runs  3 376 ✅ 0 💤 0 ❌

Results for commit 7438148.

♻️ This comment has been updated with latest results.

[github-actions]

Performance Benchmark Report

Benchmark name	Baseline (μs)	Test/PR (μs)	Delta (μs)	Delta %
clone_shell_object	17.32 μs	17.29 μs	-0.03 μs	⚪ Unchanged
eval_arithmetic	0.14 μs	0.15 μs	0.00 μs	⚪ Unchanged
expand_one_string	1.74 μs	1.73 μs	-0.01 μs	⚪ Unchanged
for_loop	21.63 μs	21.42 μs	-0.21 μs	⚪ Unchanged
function_call	2.39 μs	2.33 μs	-0.06 μs	⚪ Unchanged
instantiate_shell	58.67 μs	58.22 μs	-0.46 μs	⚪ Unchanged
instantiate_shell_with_init_scripts	25954.68 μs	25944.88 μs	-9.81 μs	⚪ Unchanged
parse_bash_completion	2084.03 μs	2049.23 μs	-34.80 μs	🟢 -1.67%
parse_sample_script	2.17 μs	1.97 μs	-0.19 μs	🟢 -8.91%
run_echo_builtin_command	15.61 μs	15.71 μs	0.10 μs	⚪ Unchanged
run_one_external_command	2414.92 μs	2415.28 μs	0.36 μs	⚪ Unchanged
tokenize_sample_script	3.48 μs	3.42 μs	-0.06 μs	🟢 -1.78%

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
brush-core/src/jobs.rs	🔴 47.71%	🔴 37.16%	🔴 -10.55%
Overall Coverage	🟢 73.76%	🟢 73.62%	🔴 -0.14%

Minimum allowed coverage is 70%, this run produced 73.62%

Test Summary: bash-completion test suite

Outcome	Count	Percentage
✅ Pass	1344	63.73
❗️ Error	216	10.24
❌ Fail	180	8.53
⏩ Skip	354	16.79
❎ Expected Fail	15	0.71
📊 Total	2109	100.00