Bump tide-disco from v0.4.6 to v0.4.8

Bumps [tide-disco](https://github.com/EspressoSystems/tide-disco) from v0.4.6 to v0.4.8.
- [Release notes](https://github.com/EspressoSystems/tide-disco/releases)
- [Commits](EspressoSystems/tide-disco@v0.4.6...d0d2bfb)

---
updated-dependencies:
- dependency-name: tide-disco
  dependency-type: direct:production
...

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

Cargo.toml

@@ -15,5 +15,5 @@ hotshot-types = { git = "https://github.com/EspressoSystems/hotshot-types", tag
 serde = { version = "1.0", features = ["derive"] }
 snafu = { version = "0.7", features = ["backtraces"] }
 tagged-base64 = { git = "https://github.com/EspressoSystems/tagged-base64", tag = "0.3.4" }
-tide-disco = { git = "https://github.com/EspressoSystems/tide-disco.git", tag = "v0.4.6" }
+tide-disco = { git = "https://github.com/EspressoSystems/tide-disco.git", tag = "v0.4.8" }
 toml = "0.8"