Adding flag com.example.android.aconfig.demo.flags.yet_another_mendel_gantry_disintegration_bugfix_flag to RELEASE_CONFIG_TRUNKFOOD_STAGING.

This commit was automatically created by advancing a workflow in Gantry. Manual edits to this file are forbidden. If you need to rollback, please visit https://releasetracker.partner.android.com/changes/cqnahj2000001?build_unique_id=Frontend:+android_platform_core_experiments_team_internal,+Study:+ComExampleAndroidAconfigDemoFlagsYetAnotherMendelGantryDisintegrationBugfixFlagLaunch to begin a rollback.

POSTSUBMIT ERRORS: If this change breaks postsubmits, please revert it and attach the associated bugs to the reverted CL's description.

Ignore-AOSP-First: AConfig change for future AOSP release

Bug: 336346880
Change-Id: Ia0171d427022731f69dedf48833aaae1d2f86952