chore: update license field to BSD-3-Clause in Cargo.toml

Author: ozankasikci

Cargo.toml

@@ -3,7 +3,7 @@ name = "fastcert"
 version = "0.2.0"
 edition = "2024"
 description = "A simple zero-config tool for making locally-trusted development certificates"
-license = "MIT"
+license = "BSD-3-Clause"
 repository = "https://github.com/ozankasikci/fastcert"
 homepage = "https://github.com/ozankasikci/fastcert"
 documentation = "https://github.com/ozankasikci/fastcert#readme"