Force `Persisted<T>` to mutate and persist atomically #5810

Job	Run time
Check no_std	30s
Check WASM	43s
Build and test (stable, true, --no-default-features)	2m 8s
Build and test (stable, true, --all-features)	1m 58s
Build and test (1.63.0, --no-default-features)	2m 14s
clippy_check	1m 8s
Rust fmt	8s
Build and test (1.63.0, --all-features)	2m 12s
	11m 1s

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