fix: docker failing to start container [fireworks-ai] (#3267)

# What does this PR do?
1725364988 
Fixes the issue with open ai package incompatibilty introduced through
new dependency of fireworks-ai==0.19.18->reward-kit by pinning to
fireworks older version that doesnt pull in reward-kit

## Test Plan
Tested locally with the following commands to start a container
1. Build container 
`llama stack build --distro starter --image-type container`
2. start container `docker run -d -p 8321:8321 --name llama-stack-test
distribution-starter:0.2.19`
3. check health http://localhost:8321/v1/health
Above steps fails without the fix

llama_stack/providers/registry/inference.py

@@ -116,7 +116,7 @@ def available_providers() -> list[ProviderSpec]:
             adapter=AdapterSpec(
                 adapter_type="fireworks",
                 pip_packages=[
-                    "fireworks-ai",
+                    "fireworks-ai<=0.18.0",
                 ],
                 module="llama_stack.providers.remote.inference.fireworks",
                 config_class="llama_stack.providers.remote.inference.fireworks.FireworksImplConfig",