Fix formatting of URL in Client::fetch_debug_info

Similar to what we did in commit 5890b93 ("Fix formatting of build
ID in Client::fetch_debug_info"), make sure to format the URL correctly
on error return.

Reported-by: Javier Honduvilla Coto <javierhonduco@gmail.com>
Signed-off-by: Daniel Müller <deso@posteo.net>

src/client.rs

@@ -126,7 +126,7 @@ impl Client {
       let result = self
         .client
         .execute(Request::new(Method::GET, url.clone()))
-        .context("failed to issue request to `{url}`");
+        .with_context(|| format!("failed to issue request to `{url}`"));
       let response = match result {
         Ok(response) => response,
         Err(err) => {