Bump syn from 2.0.89 to 2.0.90 (#224)

Author: mjovanc

Cargo.lock

@@ -22,7 +22,7 @@ proc-macro = true
 [dependencies]
 proc-macro2 = "1.0.92"
 quote = "1.0"
-syn = { version = "2.0.89", features = ["full"] }
+syn = { version = "2.0.90", features = ["full"] }
 
 [package.metadata.docs.rs]
 all-features = true