Fix settings crash

Fix settings crash when dialog is shown
becuase the wrong fragment manager is
used.

Bug: 264939770
Test: unit test and test on device
Change-Id: I5f4c04740058baaa1c96a7108dc4b08b3e467fb8

tests/unit/src/com/android/settings/applications/credentials/CredentialManagerPreferenceControllerTest.java

@@ -182,7 +182,7 @@ public class CredentialManagerPreferenceControllerTest {
         CredentialManagerPreferenceController controller =
                 new CredentialManagerPreferenceController(
                         mContext, mCredentialsPreferenceCategory.getKey());
-        controller.init(() -> mock(Lifecycle.class), availableServices);
+        controller.setAvailableServices(() -> mock(Lifecycle.class), availableServices);
         return controller;
     }