Use dynamic calls after `procref` #4256

Job	Run time
rustfmt	12s
Clippy	1m 24s
Check Rust stable on ubuntu with --all-targets --no-default-features	42s
no-std (stable, wasm32-unknown-unknown)	51s
Check Rust stable on ubuntu with --all-targets	53s
no-std (nightly, wasm32-unknown-unknown)	2m 15s
Check Rust stable on ubuntu with --all-targets --all-features	47s
Test Rust stable on ubuntu with --profile test-release	5m 9s
Check Rust nightly on ubuntu with --all-targets --no-default-features	3m 35s
Test Rust nightly on windows-2022	0s
Test Rust stable on ubuntu with --profile test-release --doc	5m 39s
Check Rust nightly on ubuntu with --all-targets	47s
Test Rust nightly on ubuntu with --profile test-release	5m 15s
Check Rust nightly on ubuntu with --all-targets --all-features	57s
Test Rust nightly on ubuntu with --profile test-release --doc	2m 48s
	31m 14s

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