chore: bump rust toolchain to 1.88.0 #104

Performance Regression: -36.24%

⚡ 15 improvements
❌ 23 regressions
✅ 129 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

	Benchmark	`BASE`	`HEAD`	Change
❌	`a`	281.4 ns	310.6 ns	-9.39%
❌	`a`	281.4 ns	310.3 ns	-9.31%
⚡	`fibo_iterative`	156.1 ns	126.9 ns	+22.98%
⚡	`sum_fold`	283.9 ns	254.7 ns	+11.45%
❌	`Iterative`	103.6 ns	162.5 ns	-36.24%
❌	`Iterative[20]`	103.6 ns	162.5 ns	-36.24%
❌	`Iterative[21]`	105.3 ns	164.2 ns	-35.87%
⚡	`bench_array1[10]`	254.2 ns	225 ns	+12.96%
⚡	`bench_array1[1]`	119.2 ns	90 ns	+32.41%
❌	`bench_array1[4]`	154.4 ns	183.6 ns	-15.89%
⚡	`bench_array2[10]`	254.2 ns	225 ns	+12.96%
⚡	`bench_array2[1]`	119.2 ns	90 ns	+32.41%
❌	`bench_array2[4]`	154.4 ns	183.6 ns	-15.89%
⚡	`init_array[1000]`	9.4 µs	9.1 µs	+3.04%
❌	`init_array[4]`	154.4 ns	183.6 ns	-15.89%
❌	`fibo_50`	90.3 ns	119.4 ns	-24.42%
⚡	`div`	124.2 ns	95 ns	+30.7%
❌	`recursive_memoized[HashMap<u64, u64>, 0]`	864.2 ns	987.5 ns	-12.49%
⚡	`rem`	124.4 ns	95.3 ns	+30.61%
⚡	`n_queens_solver[4]`	8.9 µs	8.6 µs	+3.66%
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.