ci: properly test feature matrix of `libp2p` using `cargo-hack` #14557

Job	Run time
Check for changes in proto files	13s
cargo-deny	13s
Check rustdoc intra-doc links	16s
clippy (nightly-2023-09-10)	12s
Ensure that `Cargo.lock` is up-to-date	12s
Compile on wasm32-unknown-unknown	13s
Compile on wasm32-unknown-emscripten	14s
Compile on wasm32-wasi	12s
examples	27s
Compile libp2p-identity in feature matrix	12s
Compile on x86_64-apple-darwin	2s
Compile libp2p in transport feature matrix	12s
Compile on x86_64-pc-windows-msvc	11s
gather_published_crates	13s
IPFS Integration tests	14s
Compile with MSRV	11s
manifest_lint	12s
rustfmt	3s
semver	1s
Run all WASM tests	1s
Test ${{ matrix.crate }}	1s
	3m 45s

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