config: Disable config tests due to pac type requirement MS-PAC

The config tests are currently setting the pac type to empty or without
MS-PAC type. This results in failed authorization for IPA API.

An issue has been opened for FreeIPA to address this:
https://pagure.io/freeipa/issue/9527

tests/azure/templates/variables.yaml

@@ -15,8 +15,9 @@
 #
 ---
 variables:
-  empty: true
+  # empty: true
   # ipa_enabled_modules: >-
   # ipa_enabled_tests: >-
-  # ipa_disabled_modules: >-
+  ipa_disabled_modules: >-
+    config
   # ipa_disabled_tests: >-