Fix supervisionPinRecovery flow to bypass the user restriction.

Context: "add/remove user" restriction is applied when supervision is enabled which prevents us from resetting the user. This change should fix the reset PIN flow, however will still investigate on better approach in b/407064075.

Bug: 417533273
Bug: 414457269
Flag: android.app.supervision.flags.enable_supervision_pin_recovery_screen
Test: tests/robotests/src/com/android/settings/supervision/SupervisionPinRecoveryActivityTest.kt
Change-Id: Ide5c0f8281a4a8937bd8e9632a576a2a51e974a8