chore(deps): update unsigned-varint requirement from 0.7.1 to 0.8.0

Updates the requirements on [unsigned-varint](https://github.com/paritytech/unsigned-varint) to permit the latest version.
- [Changelog](https://github.com/paritytech/unsigned-varint/blob/master/CHANGELOG.md)
- [Commits](paritytech/unsigned-varint@v0.7.2...v0.8.0)

---
updated-dependencies:
- dependency-name: unsigned-varint
  dependency-type: direct:production
...

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

Cargo.toml

@@ -29,7 +29,7 @@ parity-scale-codec = { version = "3.0.0", default-features = false, features = [
 quickcheck = { version = "1.0.3", optional = true }
 rand = { version = "0.8.5", optional = true, features = ["small_rng"] }
 serde = { version = "1.0.116", optional = true, default-features = false }
-unsigned-varint = { version = "0.7.1", default-features = false }
+unsigned-varint = { version = "0.8.0", default-features = false }
 arbitrary = { version = "1.1.0", optional = true }
 
 core2 = { version = "0.4.0", default-features = false }

codetable/Cargo.toml

@@ -36,7 +36,7 @@ serde = { version = "1.0.158", features = ["derive"], default-features = false,
 
 [dev-dependencies]
 hex = "0.4.2"
-unsigned-varint = { version = "0.7.1", default-features = false }
+unsigned-varint = { version = "0.8.0", default-features = false }
 criterion = "0.5.1"
 rand = "0.8.5"