path: pass `path` to `peer` in `hg debugssl`

We directly use the `path` object to build the `peer` object.

mercurial/debugcommands.py

@@ -3595,10 +3595,8 b' def debugssl(ui, repo, source=None, **op'
             )
         source = b"default"
 
-    source, branches = urlutil.get_unique_pull_path(
-        b'debugssl', repo, ui, source
-    )
-    url = urlutil.url(source)
+    path = urlutil.get_unique_pull_path_obj(b'debugssl', ui, source)
+    url = path.url
 
     defaultport = {b'https': 443, b'ssh': 22}
     if url.scheme in defaultport: