Mark //src/test/shell/bazel:bazel_windows_example_test as manual

This test has became flaky due to long path, see #2178

--
PiperOrigin-RevId: 141044418
MOS_MIGRATED_REVID=141044418
diff --git a/src/test/shell/bazel/BUILD b/src/test/shell/bazel/BUILD
index 78f8613..d417cc3 100644
--- a/src/test/shell/bazel/BUILD
+++ b/src/test/shell/bazel/BUILD
@@ -69,6 +69,7 @@
     data = [
         ":test-deps",
     ],
+    tags = ["manual"],
 )
 
 sh_test(