Avoid Unbounded version on vob.

Author: ratmice

Cargo.toml

@@ -14,7 +14,7 @@ bincode = ["dep:bincode", "vob/bincode", "packedvec/bincode"]
 serde = ["dep:serde", "vob/serde", "packedvec/serde"]
 
 [dependencies]
-vob = { version=">=3.0.4" }
+vob = { version="3.0.4" }
 packedvec = { version="1.2.5" }
 serde = { version="1.0", features=["derive"], optional=true }
 bincode = { version="2.0", features=["derive"], optional=true }