Separate benchmarks into their own workflow

[andrewiggins]

This change enables us to only run benchmarks on PRs that change files relevant to the benchmarks.

For example, if I did this correctly, this PR should not have any benchmarks run (though I'll make a silly change to a source file to test them).

I'll mark as ready after I've tested.

[coveralls]

Coverage remained the same at 99.439% when pulling c363f98 on separate-benchmark-workflow into 8d3bbec on master.

[github-actions]

Size Change: 0 B

Total Size: 41.9 kB

ℹ️ View Unchanged

Filename	Size	Change
compat/dist/compat.js	3.45 kB	0 B
compat/dist/compat.module.js	3.47 kB	0 B
compat/dist/compat.umd.js	3.51 kB	0 B
debug/dist/debug.js	2.99 kB	0 B
debug/dist/debug.module.js	2.98 kB	0 B
debug/dist/debug.umd.js	3.07 kB	0 B
devtools/dist/devtools.js	186 B	0 B
devtools/dist/devtools.module.js	196 B	0 B
devtools/dist/devtools.umd.js	261 B	0 B
dist/preact.js	3.93 kB	0 B
dist/preact.min.js	3.96 kB	0 B
dist/preact.module.js	3.96 kB	0 B
dist/preact.umd.js	4 kB	0 B
hooks/dist/hooks.js	1.13 kB	0 B
hooks/dist/hooks.module.js	1.15 kB	0 B
hooks/dist/hooks.umd.js	1.2 kB	0 B
jsx-runtime/dist/jsxRuntime.js	327 B	0 B
jsx-runtime/dist/jsxRuntime.module.js	335 B	0 B
jsx-runtime/dist/jsxRuntime.umd.js	405 B	0 B
test-utils/dist/testUtils.js	437 B	0 B
test-utils/dist/testUtils.module.js	439 B	0 B
test-utils/dist/testUtils.umd.js	515 B	0 B

_{compressed-size-action}

[github-actions]

📊 Tachometer Benchmark Results

Summary

• ⏱ 02_replace1k
• ⏱ 03_update10th1k_x16
• ⏱ 07_create10k
• ⏱ filter_list
• ⏱ hydrate1k
• ⏱ many_updates
• ⏱ text_update

Results

⏱ 02_replace1k

Currently running in Benchmarks #1…

⏱ 03_update10th1k_x16

Currently running in Benchmarks #1…

⏱ 07_create10k

Currently running in Benchmarks #1…

⏱ filter_list

Currently running in Benchmarks #1…

⏱ hydrate1k

Currently running in Benchmarks #1…

⏱ many_updates

Currently running in Benchmarks #1…

⏱ text_update

Currently running in Benchmarks #1…

_{tachometer-reporter-action v2 for Benchmarks}

[andrewiggins]

(I cancelled the benchmarks to not use our API limits since this is just a test that they are invoked)