test: fix 303 for get /
test: fix 303 for get /

HTTP was following the redirect!

** (ExCheck.Error) check failed: {:EXIT, {:case_clause, {:error, :no_scheme}}}. Counterexample: [{"", :get}]
     code: property :cowboy_routing do
     stacktrace:
       (excheck) lib/excheck.ex:70: ExCheck.check!/2
       test/fuzz_test.exs:14: (test)

devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids