Add `function_abi_now_unwind` lint and fix `function_abi_no_longer_unwind`. #3174

Job	Run time
Build binary	27s
Check lint and rustfmt	21s
Build binary (Windows)	2m 18s
Run tests (1.81, false)	4m 59s
Check if version changed	7s
Run tests (1.82, false)	4m 49s
Semver: core-graphics	53s
Run tests (stable, false)	4m 38s
Run tests (beta, false)	4m 44s
Run tests (nightly, true)	9m 7s
Check failure when installed rustc is too old	21s
Semver: bevy_core v0.9.0	28s
Caching with feature config changed	47s
Caching across rustdoc versions	1m 38s
Semver: clap v3.2.0	37s
Semver: bevy_gltf v0.9.1	1m 4s
Semver: libp2p-dcutr 1.62.0 and libp2p-relay 0.14.0	1m 17s
Semver: libp2p-gossipsub ~0.44.0 + libp2p-request-response ~0.24.0	1m 22s
Semver: libp2p-uds 0.37.0	53s
Semver: dependency has warnings with "-Dwarnings" (libp2p v0.53.1)	1m 8s
Semver: perf-event-open-sys2 v5.0.0	10s
Semver: ref-slice fork (git)	36s
Semver: ref-slice fork (sparse)	11s
Semver: libp2p-core 0.37.0	49s
Semver: sqllogictest v0.13.0	36s
Semver: tokio ~v1.25.0 (explicit)	6s
Semver: tokio ~v1.25.0 (implicit)	4s
Semver: ref-slice fork (Windows) (git)	1m 17s
Semver: ref-slice fork (Windows) (sparse)	1m 16s
All CI stages	1s
Check for semver compliance	0s
Run the release workflow	0s
	47m 4s

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