fix: remove modules.stage.1 from release validation

modules.stage.1.json no longer exists after the pipeline refactoring
that unified Stage 1 and Stage 2 into the collect-metadata stage.

Author: KristjanESPERANTO

scripts/validate_release_artifacts.js

@@ -8,7 +8,7 @@ import {validateStageFile} from "./lib/schemaValidator.js";
 const PROJECT_ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
 
 const RELEASE_ARTIFACTS = [
-  {stageId: "modules.stage.1", relativePath: "website/data/modules.stage.1.json"},
+  // Note: modules.stage.1.json no longer exists - Stage 1+2 were unified into collect-metadata
   {stageId: "modules.stage.2", relativePath: "website/data/modules.stage.2.json"},
   {stageId: "modules.stage.3", relativePath: "website/data/modules.stage.3.json"},
   {stageId: "modules.stage.4", relativePath: "website/data/modules.stage.4.json"},