CI: Update `continous_integration` and `audit` workflows #1007

Job	Run time
Rust fmt	16s
Clippy (--all-features)	1m 5s
Build and test (stable, --all-features)	1m 31s
Clippy (--no-default-features)	18s
Build and test (stable, --features default)	25s
Build and test (stable, --no-default-features)	26s
	4m 1s

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