Cargo Update

[AgeManning]

This just runs cargo update.

One of the updates includes a discovery patch which should fix #8437.

[michaelsproul]

Looks like there are some deprecations that need fixing (TempDir::into_path).

[michaelsproul]

LGTM!

[Copilot]

Pull request overview

This PR updates dependencies via cargo update, which includes a discovery patch intended to fix issue #8437. The changes involve three code files adapting to updated API surfaces, along with extensive dependency version updates in Cargo.lock.

Key changes:

• Updated test code to use new tempfile API methods (keep() instead of into_path())
• Updated production code to use new libp2p_mplex API (Config::new() instead of MplexConfig::new())
• Numerous dependency version updates across the project

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
validator_client/graffiti_file/src/lib.rs	Test code updated to use tempfile keep() method instead of into_path()
beacon_node/lighthouse_network/tests/common.rs	Test code updated to use tempfile keep() method instead of into_path()
beacon_node/lighthouse_network/src/service/utils.rs	Updated to use new libp2p_mplex::Config::new() API
Cargo.lock	Extensive dependency version updates including the discovery patch

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[michaelsproul]

Thought copilot might pick up on the duplicate socket2 version introduced in Cargo.lock, but that's fine. It'll go away when everyone updates to 0.6 anyway.