chore: bump discv5

[jgannonjr]

Bump github.com/sigp/discv5 to the latest version which has updated dependencies as of the latest commit f289bbd4c57d499bb1bdb393af3c249600a1c662.

The previous version depended on ahash = "^0.7.0" which has been yanked from crates.io, as evidenced from running cargo generate-lockfile (see below).

➜  reth git:(main) cargo generate-lockfile
    Updating crates.io index
    Updating git repository `https://github.com/bluealloy/revm`
    Updating git repository `https://github.com/sigp/discv5`
    Updating git repository `https://github.com/stevefan1999-personal/rust-igd`
error: failed to select a version for the requirement `ahash = "^0.7.0"`
candidate versions found which didn't match: 0.8.5, 0.8.4, 0.4.1, ...
location searched: crates.io index
required by package `hashbrown v0.11.0`
    ... which satisfies dependency `hashbrown = "^0.11.0"` of package `hashlink v0.7.0`
    ... which satisfies dependency `hashlink = "^0.7.0"` of package `discv5 v0.3.1 (https://github.com/sigp/discv5?rev=d2e30e04ee62418b9e57278cee907c02b99d5bd1#d2e30e04)`
    ... which satisfies git dependency `discv5` of package `reth-discv4 v0.1.0-alpha.10 (/Users/johnny/code/reth/crates/net/discv4)`
    ... which satisfies path dependency `reth-discv4` of package `manual-p2p v0.0.0 (/Users/johnny/code/reth/examples/manual-p2p)`
perhaps a crate was updated and forgotten to be re-vendored?