Point ethtool crate to specific revision

Summary:
I have added support for module_eeprom_get and submitted a PR to the main repo
rust-netlink/ethtool#24
I want to start using the code before the PR is accepted and released so updating Cargo.toml to point to my fork with the change.
I forked origin/master so this also updates ethtool to 0.2.8 which requires netlink-sys 0.8.7

Reviewed By: cfsmp3

Differential Revision: D80266834

fbshipit-source-id: 4439f1e45067e918aa6cac0d36a0733ee3185bdd

Author: laundrei

below/tc/Cargo.toml

@@ -12,7 +12,7 @@ license = "Apache-2.0"
 [dependencies]
 netlink-packet-core = "0.7.0"
 netlink-packet-route = "0.19.0"
-netlink-sys = "0.8.5"
+netlink-sys = "0.8.7"
 nix = { version = "0.30.1", features = ["dir", "event", "hostname", "inotify", "ioctl", "mman", "mount", "net", "poll", "ptrace", "reboot", "resource", "sched", "signal", "term", "time", "user", "zerocopy"] }
 serde = { version = "1.0.219", features = ["derive", "rc"] }
 thiserror = "2.0.12"