Advance RELEASE_BALANCE_JAVAC_SRCJAR_SHARDS to true in trunk_staging

This commit was automatically created by a workflow in Gantry:
https://releasetracker.partner.android.com/changes/8ksof9q000001?stage_id=ebfugpq000001

Flag: RELEASE_BALANCE_JAVAC_SRCJAR_SHARDS
Ignore-AOSP-First: Flag change added internally for future AOSP release
Workflow-User: himanshuz@google.com
Bug: 387799579
Change-Id: I159267b913a114760a5094df06553d9ab8e5acc5
1 file changed