Update post_json to take in a bool for allowing for redirects

crates/util/src/http.rs

@@ -40,8 +40,14 @@ pub trait HttpClient: Send + Sync {
         &'a self,
         uri: &str,
         body: AsyncBody,
+        follow_redirects: bool,
     ) -> BoxFuture<'a, Result<Response<AsyncBody>, Error>> {
         let request = isahc::Request::builder()
+            .redirect_policy(if follow_redirects {
+                RedirectPolicy::Follow
+            } else {
+                RedirectPolicy::None
+            })
             .method(Method::POST)
             .uri(uri)
             .header("Content-Type", "application/json")