Update kernel-a15.yml: Add .89 and .92

.github/workflows/kernel-a15.yml

@@ -44,6 +44,10 @@ jobs:
             os_patch_level: "2025-04"
           - sub_level: "87"
             os_patch_level: "2025-05"
+          - sub_level: "89"
+            os_patch_level: "2025-06"
+          - sub_level: "92"
+            os_patch_level: "2025-07"
           - sub_level: "X"
             os_patch_level: "lts"
     uses: ./.github/workflows/build.yml