Added 8.9 CI job

.ci/jobs/elastic+elasticsearch-php+8.7.yml → .ci/jobs/elastic+elasticsearch-php+8.9.yml

@@ -1,12 +1,12 @@
 ---
 - job:
-    name: elastic+elasticsearch-php+8.7
-    display-name: 'elastic / elasticsearch-php # 8.7'
-    description: Testing the elasticsearch-php 8.7 branch.
+    name: elastic+elasticsearch-php+8.9
+    display-name: 'elastic / elasticsearch-php # 8.9'
+    description: Testing the elasticsearch-php 8.9 branch.
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/8.7
+        default: refs/heads/8.9
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     triggers: