Bump version to 0.1.3

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: lightsofapollo

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "openapi-to-rust"
-version = "0.1.2"
+version = "0.1.3"
 edition = "2024"
 rust-version = "1.85.0"
 authors = ["James Lalonde"]