test(spec): inline config into test suite

Previously, information about each test-suite was repeated in 3 separate
places:
- as a label and as implicit knowledge in the test-suite itself,
- as a comment in Main.hs, and
- as a configuration in SpecHelper.hs.

With this change, there will be a single source of truth in the test
suite itself. This will allow a single test-suite to easily test
multiple different configurations.

test/spec/Feature/OpenApi/SecurityOpenApiSpec.hs

@@ -5,16 +5,18 @@ import Control.Lens ((^?))
 import Data.Aeson.Lens
 import Data.Aeson.QQ
 
-import Network.Wai      (Application)
 import Network.Wai.Test (SResponse (..))
 
 import Test.Hspec     hiding (pendingWith)
 import Test.Hspec.Wai
 
-import Protolude hiding (get)
+import PostgREST.Config (AppConfig (..))
 
-spec :: SpecWith ((), Application)
-spec =
+import Protolude  hiding (get)
+import SpecHelper
+
+spec :: SpecWithConfig
+spec withConfig = withConfig (baseCfg { configOpenApiSecurityActive = True }) $
   describe "Security active" $
     it "includes security and security definitions" $ do
       r <- simpleBody <$> get "/"