Use litellm fork (fix FIREWORKS_API_KEY env var) and prepare temp release

Author: benjibc

pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "omegaconf>=2.3.0",
     "httpx>=0.24.0",
     "anthropic>=0.59.0",
-    "litellm<1.75.0",
+    "litellm @ git+https://github.com/benjibc/litellm.git@fix/fireworks-api-key-env",
     "pytest>=6.0.0",
     "pytest-asyncio>=0.21.0",
     "peewee>=3.18.2",