fix: fix authors field syntax

Author: ErenayDev

template/Cargo.toml

@@ -3,7 +3,7 @@ name = "{{ crate_name }}"
 version = "0.1.0"
 edition = "2024"
 description = "{{long_description}}"
-authors = "{{ authors }}"
+authors = ["{{ authors }}"]
 license = "MIT"
 repository = "https://github.com/{{ gh-username }}/{{ crate_name }}"
 homepage = "https://{{ crate_name }}.rs" # or https://github.com/{{ gh-username }}/{{ crate_name }}