Inform type checkers that arcade_mcp_server has inline type annotations (#720)

Other packages that depend on `arcade_mcp_server` will now be able to
use the type information that `arcade_mcp_server` provides

Avoids mypy errors like the following:
`arcade_google_drive/tools/folders.py:12: error: Argument 1 to
"create_folder" becomes "Any" due to an unfollowed import
[no-any-unimported]`

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Add `arcade_mcp_server/py.typed` to expose inline type hints and bump
package version to 1.11.2.
> 
> - **Types**:
> - Add `arcade_mcp_server/py.typed` to publish inline type hints to
dependents.
> - **Packaging**:
> - Bump `version` in `libs/arcade-mcp-server/pyproject.toml` from
`1.11.1` to `1.11.2`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
f566b0acddc9174411896a01d03018cd34cf95cb. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

libs/arcade-mcp-server/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "arcade-mcp-server"
-version = "1.11.1"
+version = "1.11.2"
 description = "Model Context Protocol (MCP) server framework for Arcade.dev"
 readme = "README.md"
 authors = [{ name = "Arcade.dev" }]