ci: migrate to github default arm runners

[lvaroqui]

No description provided.

[greptile-apps]

Confidence Score: 5/5

[High impact] The PR appears safe to merge.

Summary

Both workflows replace the custom ARM runner with GitHub’s ubuntu-22.04-arm runner.

• CI checks run on GitHub’s ARM runner alongside the standard Linux runner.
• Linux ARM release builds run on GitHub’s ARM runner.

_{Reviews (1) · Last reviewed commit: "ci: migrate to github default arm runner..." · Reviewed by Greptile}

[codspeed]

Merging this PR will degrade performance by 44.27%

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚠️ 13 benchmarks spent significant time in system calls

System calls cannot be consistently instrumented, so they are not included in the measure, which understates the real cost. Please switch to the Walltime instrument to accurately measure system calls.

Measurement and system calls

• wait 1sec
• wait 500ms
• switch 1
• test_recursive_fibo_10
• test_recursive_fibo_10
• switch 1
• wait 500ms
• wait 1sec
• recursive fibo 10
• recursive fibo 10
• …and 3 more

ℹ️ 27 benchmarks have no flame graph

The flamegraph could not be generated because too much time was spent in runtime internals, making the visualization not useful for performance analysis.

• test_recursive_fibo_10
• test_recursive_fibo_10
• switch 1
• recursive fibo 10
• recursive fibo 10
• switch 2
• switch 2
• test_iterative_fibo_10
• test_iterative_fibo_100
• test sync baz 10
• …and 17 more

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 2 improved benchmarks
❌ 12 (👁 12) regressed benchmarks
✅ 224 untouched benchmarks

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Memory	short body	784 B	656 B	+19.51%
⚡	WallTime	test_iterative_fibo_10	120 ns	108 ns	+11.11%
👁	WallTime	switch 1	84 ns	96 ns	-12.5%
👁	Memory	short body	656 B	784 B	-16.33%
👁	Memory	wait 500ms	15.5 KB	21.5 KB	-27.99%
👁 ⚠️	Simulation	wait 1sec	58.3 ms	72.9 ms	-20.03%
👁 ⚠️	Simulation	wait 500ms	28.7 ms	36.7 ms	-21.8%
👁 ⚠️	Simulation	switch 1	204.5 µs	596.6 µs	-65.73%
👁 ⚠️	Simulation	test_recursive_fibo_10	280.9 µs	1,338.5 µs	-79.02%
👁 ⚠️	Simulation	switch 1	243.1 µs	1,573.6 µs	-84.55%
👁 ⚠️	Simulation	wait 500ms	28.5 ms	50.4 ms	-43.49%
👁 ⚠️	Simulation	wait 1sec	57.5 ms	92.8 ms	-38.02%
👁 ⚠️	Simulation	recursive fibo 10	299 µs	1,583.4 µs	-81.12%
👁 ⚠️	Simulation	recursive fibo 10	1.4 ms	1.6 ms	-13.28%

Tip

Curious why performance improved? Comment @codspeedbot explain why performance improved on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing cod-3837-migrate-from-codspeedhq-arm64-ubuntu-204-github-runners-to (f8564bb) with main (3258048)}