Potential fix for pull request finding 'Missed opportunity to use Where'

Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>

Author: lcawl

src/services/Elastic.Documentation.Services/ChangelogService.cs

@@ -92,13 +92,10 @@ Cancel ctx
 			}
 
 			// Validate lifecycle values in products
-			foreach (var product in input.Products)
+			foreach (var product in input.Products.Where(product => !string.IsNullOrWhiteSpace(product.Lifecycle) && !config.AvailableLifecycles.Contains(product.Lifecycle)))
 			{
-				if (!string.IsNullOrWhiteSpace(product.Lifecycle) && !config.AvailableLifecycles.Contains(product.Lifecycle))
-				{
-					collector.EmitError(string.Empty, $"Lifecycle '{product.Lifecycle}' for product '{product.Product}' is not in the list of available lifecycles. Available lifecycles: {string.Join(", ", config.AvailableLifecycles)}");
-					return false;
-				}
+				collector.EmitError(string.Empty, $"Lifecycle '{product.Lifecycle}' for product '{product.Product}' is not in the list of available lifecycles. Available lifecycles: {string.Join(", ", config.AvailableLifecycles)}");
+				return false;
 			}
 
 			// Build changelog data from input