Correct authors field capitalization in manifest

Author: marcosqlbi

src/manifest.daxlib

@@ -2,10 +2,10 @@
   "$schema": "https://raw.githubusercontent.com/daxlib/daxlib/refs/heads/main/schemas/manifest/1.0.0/manifest.1.0.0.schema.json",
   "id": "Contoso.Sample",
   "version": "0.1.0",
-  "authors": "Contoso Ltd",
+  "authors": "Contoso LTD",
   "description": "A sample DAX Lib package for demonstration purposes only.",
   "tags": "SAMPLE,TEMPLATE,DEMO",
   "projectUrl": "https://contoso.com/sample-library",
   "repositoryUrl": "https://github.com/contoso/sample-library",
   "readme": "/README.md"
-}
+}