fix: github: use correct url to check CI status

There was a stray $ in the string interpolation (blame working on
Typescript for other projects) and the wrong query path.

crates/forge-github/src/commit.rs

@@ -15,7 +15,7 @@ pub async fn status(github: &github::Github, commit: &git::Commit) -> git::forge
     use secrecy::ExposeSecret;
     let token = api_token.expose_secret();
     let url = network::NetUrl::new(format!(
-        "https://api.github.com/repos/${repo_path}/commits/{commit}/check-runs"
+        "https://api.github.com/repos/{repo_path}/commits/{commit}/statuses"
     ));
 
     let headers = network::NetRequestHeaders::new()