chore: Enabling Milvus for VectorIO CI

Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>

docs/source/providers/vector_io/remote_milvus.md

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+# remote::milvus
+
+## Description
+
+
+[Milvus](https://milvus.io/) is an inline and remote vector database provider for Llama Stack. It
+allows you to store and query vectors directly within a Milvus database.
+That means you're not limited to storing vectors in memory or in a separate service.
+
+## Features
+
+- Easy to use
+- Fully integrated with Llama Stack
+
+## Usage
+
+To use Milvus in your Llama Stack project, follow these steps:
+
+1. Install the necessary dependencies.
+2. Configure your Llama Stack project to use Milvus.
+3. Start storing and querying vectors.
+
+## Installation
+
+You can install Milvus using pymilvus:
+
+```bash
+pip install pymilvus
+```
+
+## Configuration
+
+In Llama Stack, Milvus can be configured in two ways:
+- **Inline (Local) Configuration** - Uses Milvus-Lite for local storage
+- **Remote Configuration** - Connects to a remote Milvus server
+
+### Inline (Local) Configuration
+
+The simplest method is local configuration, which requires setting `db_path`, a path for locally storing Milvus-Lite files:
+
+```yaml
+vector_io:
+  - provider_id: milvus
+    provider_type: inline::milvus
+    config:
+      db_path: ~/.llama/distributions/together/milvus_store.db
+```
+
+### Remote Configuration
+
+Remote configuration is suitable for larger data storage requirements:
+
+#### Standard Remote Connection
+
+```yaml
+vector_io:
+  - provider_id: milvus
+    provider_type: remote::milvus
+    config:
+      uri: "http://<host>:<port>"
+      token: "<user>:<password>"
+```
+
+#### TLS-Enabled Remote Connection (One-way TLS)
+
+For connections to Milvus instances with one-way TLS enabled:
+
+```yaml
+vector_io:
+  - provider_id: milvus
+    provider_type: remote::milvus
+    config:
+      uri: "https://<host>:<port>"
+      token: "<user>:<password>"
+      secure: True
+      server_pem_path: "/path/to/server.pem"
+```
+
+#### Mutual TLS (mTLS) Remote Connection
+
+For connections to Milvus instances with mutual TLS (mTLS) enabled:
+
+```yaml
+vector_io:
+  - provider_id: milvus
+    provider_type: remote::milvus
+    config:
+      uri: "https://<host>:<port>"
+      token: "<user>:<password>"
+      secure: True
+      ca_pem_path: "/path/to/ca.pem"
+      client_pem_path: "/path/to/client.pem"
+      client_key_path: "/path/to/client.key"
+```
+
+#### Key Parameters for TLS Configuration
+
+- **`secure`**: Enables TLS encryption when set to `true`. Defaults to `false`.
+- **`server_pem_path`**: Path to the **server certificate** for verifying the server's identity (used in one-way TLS).
+- **`ca_pem_path`**: Path to the **Certificate Authority (CA) certificate** for validating the server certificate (required in mTLS).
+- **`client_pem_path`**: Path to the **client certificate** file (required for mTLS).
+- **`client_key_path`**: Path to the **client private key** file (required for mTLS).
+
+## Documentation
+See the [Milvus documentation](https://milvus.io/docs/install-overview.md) for more details about Milvus in general.
+
+For more details on TLS configuration, refer to the [TLS setup guide](https://milvus.io/docs/tls.md).
+
+
+## Configuration
+
+| Field | Type | Required | Default | Description |
+|-------|------|----------|---------|-------------|
+| `uri` | `<class 'str'>` | No | PydanticUndefined | The URI of the Milvus server |
+| `token` | `str \| None` | No | PydanticUndefined | The token of the Milvus server |
+| `consistency_level` | `<class 'str'>` | No | Strong | The consistency level of the Milvus server |
+| `config` | `dict` | No | {} | This configuration allows additional fields to be passed through to the underlying Milvus client. See the [Milvus](https://milvus.io/docs/install-overview.md) documentation for more details about Milvus in general. |
+
+> **Note**: This configuration class accepts additional fields beyond those listed above. You can pass any additional configuration options that will be forwarded to the underlying provider.
+
+## Sample Configuration
+
+```yaml
+uri: ${env.MILVUS_ENDPOINT}
+token: ${env.MILVUS_TOKEN}
+
+```
+