refactor: rename Go module from c4 to games

Rename module path github.com/ryanhamamura/c4 to
github.com/ryanhamamura/games across go.mod, all source files,
and golangci config.

features/auth/routes.go

@@ -5,7 +5,7 @@ import (
 	"github.com/alexedwards/scs/v2"
 	"github.com/go-chi/chi/v5"
 
-	"github.com/ryanhamamura/c4/db/repository"
+	"github.com/ryanhamamura/games/db/repository"
 )
 
 func SetupRoutes(router chi.Router, queries *repository.Queries, sessions *scs.SessionManager) {