Sort Jenkins biuld by timestemp in CITable

Signed-off-by: Gabriel Noal <gabriel.oliva@hotmail.com>

.changeset/rude-comics-float.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-jenkins': minor
+---
+
+Sort Jenkins biuld by timestemp in CITable

plugins/jenkins/src/components/BuildsPage/lib/CITable/CITable.tsx

@@ -80,6 +80,12 @@ const FailSkippedWidget = ({
 };
 
 const generatedColumns: TableColumn[] = [
+  {
+    title: 'Timestamp',
+    defaultSort: 'desc',
+    hidden: true,
+    field: 'lastBuild.timestamp',
+  },
   {
     title: 'Build',
     field: 'fullName',