Make awesomebot ignore more 5?? error codes

I'd rather have a false pass than have a PR fail checks because a server is overloaded. Signed-off-by: Joe Block <jpb@unixorn.net>

Author: unixorn

.github/workflows/awesomebot.yml

@@ -15,4 +15,4 @@ jobs:
  - uses: actions/checkout@v1
  - uses: docker://dkhamsing/awesome_bot:latest
  with:
- args: /github/workspace/README.md --allow 502,503,504,509,521 --allow-dupe --allow-redirect --request-delay 1 --white-list https://github,https://img.shields.io
+ args: /github/workspace/README.md --allow 500,501,502,503,504,509,521 --allow-dupe --allow-redirect --request-delay 1 --white-list https://github,https://img.shields.io