fix: testhost build

Author: stratosblue

test/ResponseCaching.Test.WebHost/Program.cs

@@ -50,7 +50,7 @@
 services.AddTransient<TestCustomCacheKeyGenerator>();
 services.AddSingleton<TestCustomModelKeyParser>();
 
-#if NET9_0_OR_GREATER
+#if DEBUG && NET9_0_OR_GREATER
 services.AddOpenApi();
 #endif
 
@@ -60,9 +60,9 @@
 {
     app.UseDeveloperExceptionPage();
 
-#if NET9_0_OR_GREATER
-    app.MapOpenApi();
-    app.MapSwaggerUI();
+#if DEBUG && NET9_0_OR_GREATER
+app.MapOpenApi();
+app.MapSwaggerUI();
 #endif
 }