feat: Add Groq distribution template (#1173)

# What does this PR do?

Create a distribution template using Groq as inference provider.
Link to issue: https://github.com/meta-llama/llama-stack/issues/958


## Test Plan
Run `python llama_stack/scripts/distro_codegen.py` to generate run.yaml
and build.yaml
Test the newly created template by running
`llama stack build --template <template-name>`
`llama stack run <template-name>`

docs/source/distributions/self_hosted_distro/groq.md

@@ -0,0 +1,77 @@
+---
+orphan: true
+---
+<!-- This file was auto-generated by distro_codegen.py, please edit source -->
+# Groq Distribution
+
+```{toctree}
+:maxdepth: 2
+:hidden:
+
+self
+```
+
+The `llamastack/distribution-groq` distribution consists of the following provider configurations.
+
+| API | Provider(s) |
+|-----|-------------|
+| agents | `inline::meta-reference` |
+| datasetio | `remote::huggingface`, `inline::localfs` |
+| eval | `inline::meta-reference` |
+| inference | `remote::groq` |
+| safety | `inline::llama-guard` |
+| scoring | `inline::basic`, `inline::llm-as-judge`, `inline::braintrust` |
+| telemetry | `inline::meta-reference` |
+| tool_runtime | `remote::brave-search`, `remote::tavily-search`, `inline::code-interpreter`, `inline::rag-runtime` |
+| vector_io | `inline::faiss` |
+
+
+### Environment Variables
+
+The following environment variables can be configured:
+
+- `LLAMASTACK_PORT`: Port for the Llama Stack distribution server (default: `5001`)
+- `GROQ_API_KEY`: Groq API Key (default: ``)
+
+### Models
+
+The following models are available by default:
+
+- `meta-llama/Llama-3.1-8B-Instruct (llama3-8b-8192)`
+- `meta-llama/Llama-3.1-8B-Instruct (llama-3.1-8b-instant)`
+- `meta-llama/Llama-3-70B-Instruct (llama3-70b-8192)`
+- `meta-llama/Llama-3.3-70B-Instruct (llama-3.3-70b-versatile)`
+- `meta-llama/Llama-3.2-3B-Instruct (llama-3.2-3b-preview)`
+
+
+### Prerequisite: API Keys
+
+Make sure you have access to a Groq API Key. You can get one by visiting [Groq](https://api.groq.com/).
+
+
+## Running Llama Stack with Groq
+
+You can do this via Conda (build code) or Docker which has a pre-built image.
+
+### Via Docker
+
+This method allows you to get started quickly without having to build the distribution code.
+
+```bash
+LLAMA_STACK_PORT=5001
+docker run \
+  -it \
+  -p $LLAMA_STACK_PORT:$LLAMA_STACK_PORT \
+  llamastack/distribution-groq \
+  --port $LLAMA_STACK_PORT \
+  --env GROQ_API_KEY=$GROQ_API_KEY
+```
+
+### Via Conda
+
+```bash
+llama stack build --template groq --image-type conda
+llama stack run ./run.yaml \
+  --port $LLAMA_STACK_PORT \
+  --env GROQ_API_KEY=$GROQ_API_KEY
+```