Upgrade all crates to the 2024 edition and bump MSRV to 1.85 #764

Job	Run time
build (1.85.0, armv7a-none-eabi)	12s
build (1.85.0, thumbv7em-none-eabi)	21s
build (1.85.0, wasm32-unknown-unknown)	12s
test (i686-unknown-linux-gnu, ubuntu-latest, 1.85.0, sudo apt update && sudo apt install gcc-mult...	25s
build (stable, armv7a-none-eabi)	16s
test (i686-unknown-linux-gnu, ubuntu-latest, stable, sudo apt update && sudo apt install gcc-mult...	30s
build (stable, thumbv7em-none-eabi)	17s
test (x86_64-unknown-linux-gnu, ubuntu-latest, 1.85.0)	12s
build (stable, wasm32-unknown-unknown)	14s
test (x86_64-unknown-linux-gnu, ubuntu-latest, stable)	13s
test (x86_64-apple-darwin, macos-latest, 1.85.0)	21s
test (x86_64-apple-darwin, macos-latest, stable)	22s
test (x86_64-pc-windows-msvc, windows-latest, 1.85.0)	47s
test (x86_64-pc-windows-msvc, windows-latest, stable)	57s
cross (aarch64-unknown-linux-gnu, 1.85.0)	39s
cross (aarch64-unknown-linux-gnu, stable)	38s
cross (powerpc-unknown-linux-gnu, 1.85.0)	40s
cross (powerpc-unknown-linux-gnu, stable)	38s
x86 (x86_64-unknown-linux-gnu, 1.85.0)	21s
x86 (x86_64-unknown-linux-gnu, stable)	19s
minimal-versions / minimal-versions	58s
	9m 32s

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