Fix: include azure_roles.json in wheel package data

The pyproject.toml packaging config only included .py files, so
azure_roles.json (682 Azure role names) never made it into the built
wheel/Docker image. This silently broke the 'roles: [...]' array
completion feature in production even though the code and local dev
worked fine (repo files were always on disk locally).

Root-caused via a raw WebSocket JSON-RPC test against production that
returned 0 completion items for a roles array, despite the same logic
returning 682 items when exercised directly against the local module
in this repo.

pyproject.toml

@@ -24,6 +24,11 @@ ilsp = "ilsp.server:main"
 where = ["."]
 include = ["ilsp*"]
 
+[tool.setuptools.package-data]
+"ilsp.bicep_lsp" = ["*.json"]
+"ilsp.yaml_lsp" = ["*.json"]
+"ilsp.python_lsp" = ["*.json"]
+
 [project.optional-dependencies]
 dev = [
     "pytest>=8.0",