**What does this PR do?**
This PR fixes a build issue with the Containerfile caused by missing
requirement `llama-stack`. It updates the Containerfile to include the
necessary requirements and upgrades the Python version to ensure
successful builds.
**Test Plan**
The updated Containerfile has been tested, and the build now completes
successfully with the required dependencies included.
# What does this PR do?
Adds a container file that can be used to build the playground UI.
This file will be built by this PR in the stack-ops repo:
https://github.com/meta-llama/llama-stack-ops/pull/9
Docker command in the docs will need to change once I know the address
of the official repository.
## Test Plan
Tested image on my local Openshift Instance using this helm chart:
https://github.com/Jaland/llama-stack-helm/tree/main/llama-stack
[//]: # (## Documentation)
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Co-authored-by: Jamie Land <hokie10@gmail.com>