Move bootstraps over to xtask

[flaub]

No description provided.

[github-actions]

Benchmark for Linux-cuda

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Benchmark for Linux-default

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Benchmark for macOS-default 51b4a5b

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Test	Base	PR	%
fib/100/execute	2.8±0.09ms	2.8±0.19ms	0.00%
fib/100/prove	3.7±0.07s	3.7±0.05s	0.00%
fib/100/total	3.7±0.06s	3.7±0.06s	0.00%
fib/1000/execute	3.0±0.12ms	2.8±0.11ms	-6.67%
fib/1000/prove	3.7±0.07s	3.6±0.07s	-2.70%
fib/1000/total	3.7±0.05s	3.7±0.05s	0.00%
fib/10000/execute	5.1±0.14ms	5.1±0.07ms	0.00%
fib/10000/prove	15.3±0.09s	15.3±0.10s	0.00%
fib/10000/total	15.4±0.10s	15.3±0.14s	-0.65%

Benchmark for macOS-metal

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[SchmErik]

I think this looks good aside from the typo

[github-actions]

Benchmark for Linux-cuda d38e377

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Test	Base	PR	%
fib/100/execute	5.1±0.12ms	5.1±0.10ms	0.00%
fib/100/prove	889.5±9.45ms	808.6±1.83ms	-9.09%
fib/100/total	827.9±10.36ms	813.5±2.09ms	-1.74%
fib/1000/execute	5.6±0.09ms	5.5±0.11ms	-1.79%
fib/1000/prove	890.1±17.24ms	830.9±2.02ms	-6.65%
fib/1000/total	860.4±9.30ms	839.2±3.01ms	-2.46%
fib/10000/execute	10.2±0.10ms	10.2±0.11ms	0.00%
fib/10000/prove	3.2±0.02s	2.7±0.00s	-15.63%
fib/10000/total	3.2±0.01s	2.8±0.00s	-12.50%

Benchmark for Linux-default

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Benchmark for macOS-default d38e377

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Test	Base	PR	%
fib/100/execute	2.8±0.16ms	2.7±0.06ms	-3.57%
fib/100/prove	3.7±0.07s	3.7±0.06s	0.00%
fib/100/total	3.7±0.06s	3.7±0.06s	0.00%
fib/1000/execute	3.0±0.08ms	3.0±0.09ms	0.00%
fib/1000/prove	3.7±0.08s	3.7±0.06s	0.00%
fib/1000/total	3.7±0.07s	3.7±0.07s	0.00%
fib/10000/execute	5.2±0.05ms	5.2±0.07ms	0.00%
fib/10000/prove	15.3±0.10s	15.2±0.07s	-0.65%
fib/10000/total	15.3±0.06s	15.3±0.12s	0.00%

Benchmark for macOS-metal

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