Temporarily disable Bazel's proto test

This tries to download something from zlib.net, which is currently unavailable. So much for non-hermetic tests...

PiperOrigin-RevId: 281267467
diff --git a/src/test/shell/bazel/BUILD b/src/test/shell/bazel/BUILD
index 95c1777..b005d4c 100644
--- a/src/test/shell/bazel/BUILD
+++ b/src/test/shell/bazel/BUILD
@@ -372,7 +372,11 @@
     srcs = ["bazel_proto_library_test.sh"],
     data = [":test-deps"],
     exec_compatible_with = ["//:highcpu_machine"],
-    tags = ["no_windows"],  # Doesn't work on Windows for unknown reason
+    # Temporarily disable on CI because zlib.net is down.
+    tags = [
+        "manual",
+        "no_windows",
+    ],  # Doesn't work on Windows for unknown reason
 )
 
 sh_test(