Force Openapi to use non-management interface

Due to a change[1] made upstream  OpenAPI is now deployed
on management interface by default. This breaks our tests, so we should
use an option to disable this behavior (and verify, that this option
works).

[1] quarkusio/quarkus#34353

http/management/src/main/resources/application.properties

@@ -1,3 +1,4 @@
 # Only run tests annotated with @QuarkusTest
 quarkus.test.type=quarkus-test
 quarkus.management.enabled=true
+quarkus.smallrye-openapi.management.enabled=false