bumped up version to 0.18.0

Author: r4gus

build.zig.zon

@@ -2,7 +2,7 @@
     .name = .zbor,
     // This is a [Semantic Version](https://semver.org/).
     // In a future version of Zig it will be used for package deduplication.
-    .version = "0.17.3",
+    .version = "0.18.0",
 
     // This field is optional.
     // This is currently advisory only; Zig does not yet do anything