Avoid wildcard dependency in Cargo.toml

Author: kraigher

vhdl_lang/Cargo.toml

@@ -24,7 +24,7 @@ rayon = "1"
 parking_lot = "0"
 dunce = "1"
 arc-swap = {version = "1", features = ["weak"]}
-pinned_vec = "*"
+pinned_vec = "0"
 
 [dev-dependencies]
 tempfile = "3"