build(deps): update libp2p requirement from 0.40.0-rc.1 to 0.42.0 in /rust

[dependabot[bot]]

Updates the requirements on libp2p to permit the latest version.

Release notes

Sourced from libp2p's releases.

v0.42.0

Larger release, among many other things adding most of the components required for hole-punching.

See individual changelogs for details.

Changelog

Sourced from libp2p's changelog.

Version 0.42.0 [2022-01-27]

• Update individual crates.
  • libp2p-autonat
    • v0.1.0
  • libp2p-core
    • v0.31.0
  • libp2p-deflate
    • v0.31.0
  • libp2p-dns
    • v0.31.0
  • libp2p-floodsub
    • v0.33.0
  • libp2p-gossipsub
    • v0.35.0
  • libp2p-identify
    • v0.33.0
  • libp2p-kad
    • v0.34.0
  • libp2p-mdns (breaking compatibility with previous versions)
    • v0.34.0
  • libp2p-metrics
    • v0.3.0
  • libp2p-mplex
    • v0.31.0
  • libp2p-noise
    • v0.34.0
  • libp2p-ping
    • v0.33.0
  • libp2p-plaintext
    • v0.31.0
  • libp2p-relay
    • v0.6.0
  • libp2p-rendezvous
    • v0.3.0
  • libp2p-request-response
    • v0.15.0
  • libp2p-swarm-derive
    • v0.26.1
  • libp2p-swarm
    • v0.33.0
  • libp2p-tcp
    • v0.31.0
  • libp2p-uds
    • v0.31.0
  • libp2p-wasm-ext
    • v0.31.0
  • libp2p-websocket
    • v0.33.0
  • libp2p-yamux

... (truncated)

Commits

• 73c103e protocols/autonat/Cargo.toml: Add description field (#2452)
• e6ccfbc *: Prepare v0.42.0 (#2440)
• 320a1cd protocols/kad: Add Kademlia::get_closest_local_peers (#2436)
• a26b6ab protocols/autonat: Add changelog and start version at v0.1.0 (#2444)
• fad9980 *: Update tokio, lru and prost (#2443)
• d52ab1b build(deps): Update rmp-serde requirement from 0.15 to 1.0 (#2439)
• 4001b56 *: Rework reporting of invalid and wrong PeerIds (#2441)
• 30fc882 protocols/gossipsub: Implement unsub backoff spec changes (#2403)
• 96dbfcd core/src/transport: Add Transport::dial_as_listener (#2363)
• bdfbceb build(deps): Update yamux requirement from 0.9.0 to 0.10.0 (#2435)
• Additional commits viewable in compare view

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[dependabot[bot]]

Looks like libp2p is up-to-date now, so this is no longer needed.