Implemented the Outdated subcommand (#6)

This PR contains the work done to implement the `Outdated` subcommand that check for outdated package dependencies in a *Hummingbird* project.

Reviewed-on: #6
Co-authored-by: Javier Cicchelli <javier@rock-n-code.com>
Co-committed-by: Javier Cicchelli <javier@rock-n-code.com>

Library/Sources/Internal/Extensions/URL+Extensions.swift

@@ -16,7 +16,7 @@ extension URL {
     
     var pathString: String {
         if #available(macOS 13.0, *) {
-            path(percentEncoded: true)
+            path(percentEncoded: false)
         } else {
             path
         }