adjusted requester to supply http::version itself

src/videos.rs

@@ -271,6 +271,15 @@ impl VideoFormat {
             headers.insert(key, value);
         }
     }
+    pub fn http_header(&mut self, key: String, value: String) -> Self {
+        if self.http_headers.is_none() {
+            self.http_headers = Some(HashMap::new());
+        }
+        if let Some(headers) = &mut self.http_headers {
+            headers.insert(key, value);
+        }
+        self.to_owned()
+    }
     pub fn format_id(mut self, format_id: String) -> Self {
         self.format_id = Some(format_id);
         self