feat: retry http requests that fail with a 503 status (#2395)

Signed-off-by: DarkSoul <83767949+D4rk-S0ul@users.noreply.github.com>
Co-authored-by: plun1331 <plun1331@gmail.com>
Co-authored-by: Lala Sabathil <lala@pycord.dev>

CHANGELOG.md

@@ -33,6 +33,8 @@ These changes are available on the `master` branch, but have not yet been releas
 
 - Changed the type of `Guild.bitrate_limit` to `int`.
   ([#2387](https://github.com/Pycord-Development/pycord/pull/2387))
+- HTTP requests that fail with a 503 status are now re-tried.
+  ([#2395](https://github.com/Pycord-Development/pycord/pull/2395))
 
 ## [2.5.0] - 2024-03-02
 

discord/http.py

@@ -357,8 +357,8 @@ async def request(
 
                             continue
 
-                        # we've received a 500, 502, or 504, unconditional retry
-                        if response.status in {500, 502, 504}:
+                        # we've received a 500, 502, 503, or 504, unconditional retry
+                        if response.status in {500, 502, 503, 504}:
                             await asyncio.sleep(1 + tries * 2)
                             continue