go.mod: go-libp2p-core (v0.8.5) -> go-libp2p/core (v0.23.4)

[AkihiroSuda]

https://github.com/libp2p/go-libp2p-core is now archived and replaced by the core package in https://github.com/libp2p/go-libp2p

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[AkihiroSuda]

Duplicate of

• chore: update go-libp2p to v0.23.4 #92

🤦