Disable deprecation warning for test of deprecated getters

Otherwise the build fails because we treat all warnings as errors.

test/libdnf5/conf/test_conf.cpp

@@ -61,10 +61,13 @@ void ConfTest::test_config_repo() {
 void ConfTest::test_config_pkg_gpgcheck() {
     // Ensure both pkg_gpgcheck and gpgcheck point to the same underlying OptionBool object
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
     // For ConfigMain
     CPPUNIT_ASSERT_EQUAL(&config.get_pkg_gpgcheck_option(), &config.get_gpgcheck_option());
 
     // For ConfigRepo
     repo::ConfigRepo config_repo(config, "test-repo");
     CPPUNIT_ASSERT_EQUAL(&config_repo.get_pkg_gpgcheck_option(), &config_repo.get_gpgcheck_option());
+#pragma GCC diagnostic pop
 }