Update presubmit.yml

Author: zhangskz

modules/protobuf/30.0-rc1/presubmit.yml

@@ -1,7 +1,7 @@
 matrix:
   # Removing ubuntu just for this release candidate
   platform: ["debian10", "macos"]
-  bazel: [7.x]
+  bazel: [7.x, 8.x]
 
 tasks:
   verify_targets:
@@ -44,7 +44,7 @@ bcr_test_module:
   matrix:
     # Removing ubuntu just for this release candidate
     platform: ["debian10", "macos"]
-    bazel: [7.x]
+    bazel: [7.x, 8.x]
   tasks:
     run_test_module:
       name: "Run test module"