fix: Add async aupdate_build_config to CustomComponent

[cbornet]

Add async aupdate_build_config to CustomComponent. This also fixes blocking calls that where made through update_build_config by calling aupdate_build_config instead

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #5181 will degrade performances by 26.93%

_{Comparing cbornet:async-update-build-config (ff614f7) with main (5ee995e)}

Summary

⚡ 2 improvements
❌ 1 regressions
✅ 12 untouched benchmarks

:warning: Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	cbornet:async-update-build-config	Change
⚡	test_get_and_cache_all_types_dict	1,958.4 µs	854.4 µs	×2.3
⚡	test_successful_run_with_input_type_text	248.8 ms	170.9 ms	+45.59%
❌	test_successful_run_with_output_type_any	245 ms	335.2 ms	-26.93%

[cbornet]

We should have a test using ComponentTestBase to make sure this PR does not break backwards compatibility.

done.