docs: update Go version requirement to 1.25.6 (#242)

* docs: update Go version requirement to 1.25.6

* docs: remove trailing whitespace

Author: peteski22

README.md

@@ -135,7 +135,7 @@ Plugin SDKs are built using the [mcpd plugin Protocol Buffers specification](htt
 ## 💻 Development
 
 If you are developing `mcpd`, you will need:
-- [**Go**](https://go.dev/doc/install) (v1.25.1+ recommended)
+- [**Go**](https://go.dev/doc/install) (v1.25.6+ recommended)
 
 Build local code:
 ```bash

docs/requirements.md

@@ -2,10 +2,10 @@
 
 To use `mcpd`, ensure the following tools are installed:
 
-| Tool           | Purpose                                                     | URL                                                                                                                                    | 
-|----------------|-------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------| 
-| `Docker`       | For running MCP servers as Docker containers                | [https://www.docker.com/products/docker-desktop/](https://www.docker.com/products/docker-desktop/)                                     | 
-| `Go >= 1.25.1` | Required for building `mcpd` and running tests              | [https://go.dev/doc/install](https://go.dev/doc/install)                                                                               | 
+| Tool           | Purpose                                                     | URL                                                                                                                                    |
+|----------------|-------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------|
+| `Docker`       | For running MCP servers as Docker containers                | [https://www.docker.com/products/docker-desktop/](https://www.docker.com/products/docker-desktop/)                                     |
+| `Go >= 1.25.6` | Required for building `mcpd` and running tests              | [https://go.dev/doc/install](https://go.dev/doc/install)                                                                               |
 | `uv`           | For running `uvx` Python packages in `mcpd`, and local docs | [https://docs.astral.sh/uv/getting-started/installation/](https://docs.astral.sh/uv/getting-started/installation/)                     |
 | `npx`          | For running JavaScript/TypeScript packages in `mcpd`        | [https://docs.npmjs.com/downloading-and-installing-node-js-and-npm](https://docs.npmjs.com/downloading-and-installing-node-js-and-npm) |