chore: update repository url

Author: Defelo

Cargo.toml

@@ -27,7 +27,7 @@ version = "0.0.0"
 edition = "2021"
 publish = false
 homepage = "https://bootstrap.academy/"
-repository = "https://github.com/Bootstrap-Academy/Bootstrap-Academy"
+repository = "https://github.com/Bootstrap-Academy/backend"
 
 [workspace.lints.rust]
 unsafe_code = "forbid"