test: make some trivial change to trigger the CI

Part of #531

NO_DOC=trivial
NO_TEST=trivial

Author: LevKats

test/unit-luatest/util_test.lua

@@ -31,6 +31,7 @@ test_group.test_uri_eq = function()
 
     --
     -- Not equal.
+    -- Something to trigger the flaky CI.
     --
     t.assert(not uri_eq(1, 2))
     t.assert(not uri_eq('1', '2'))