Bump ws from 0.7.9 to 0.8.0 (#3866)

Bumps [ws](https://github.com/housleyjk/ws-rs) from 0.7.9 to 0.8.0.
- [Release notes](https://github.com/housleyjk/ws-rs/releases)
- [Changelog](https://github.com/housleyjk/ws-rs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/housleyjk/ws-rs/compare/v0.7.9...v0.8.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

bench-exchange/Cargo.toml

@@ -30,7 +30,7 @@ solana-logger = { path = "../logger", version = "0.14.0" }
 solana-metrics = { path = "../metrics", version = "0.14.0" }
 solana-netutil = { path = "../netutil", version = "0.14.0" }
 solana-sdk = { path = "../sdk", version = "0.14.0" }
-ws = "0.7.9"
+ws = "0.8.0"
 untrusted = "0.6.2"
 
 [features]