Skip Bazel 7.2 tests in downstream pipeline (#244)

Fixes #242 and https://github.com/bazelbuild/continuous-integration/issues/1999
diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index e449350..0244f63 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -119,6 +119,7 @@
     test_targets:
     - "//test:proto_format_test"
     - "//test:macro_kwargs_legacy_test"
+    skip_in_bazel_downstream_pipeline: Manual tests requiring an older Bazel version
 
   bazel_8_tests:
     name: Stardoc golden tests requiring Bazel HEAD