Merge pull request #6600 from dev-hato/renovate/openai-2.x

Update dependency openai to v2.31.0

Author: renovate[bot]

pyproject.toml

@@ -13,7 +13,7 @@ dependencies = [
     "gitpython==3.1.46",
     "pandas==2.3.3",
     "matplotlib==3.10.8",
-    "openai==2.30.0",
+    "openai==2.31.0",
     "discord.py==2.7.1",
     "misskey.py==4.1.0",
     "websockets==16.0",