feat!: simplify LocalPool handling (#47) #185

Job	Run time
Checking fmt	26s
Android Build Only (aarch64-linux-android)	1m 12s
Checking docs	1m 5s
Android Build Only (armv7-linux-androideabi)	1m 7s
cargo deny	26s
check_semver	1m 8s
clippy_check	1m 16s
codespell	4s
Cross Build Only (x86_64-unknown-freebsd)	39s
Cross Test (i686-unknown-linux-gnu)	57s
Minimal Supported Rust Version	55s
CI Test Suite / Tests (ubuntu-latest, stable, all)	1m 17s
CI Test Suite / Tests (windows-latest, stable, all, x86_64-pc-windows-msvc)	1m 51s
CI Test Suite / Tests (ubuntu-latest, stable, none)	44s
CI Test Suite / Tests (windows-latest, stable, none, x86_64-pc-windows-msvc)	1m 11s
CI Test Suite / Tests (ubuntu-latest, stable, default)	48s
CI Test Suite / Tests (windows-latest, stable, default, x86_64-pc-windows-msvc)	1m 26s
CI Test Suite / Tests (macOS-arm-latest, stable, all)	1m 25s
CI Test Suite / Tests (macOS-arm-latest, stable, none)	46s
CI Test Suite / Tests (macOS-arm-latest, stable, default)	1m 2s
	19m 45s

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