update canton to 3.6.0-snapshot.20260904.20228.0.v11f9e99e

Canton changes:

• 43d10372cf mikolajkoziel-da: Migrate command and jobs for package_jsonapi from canton_nightly workflow (#34237)
• e3b77ac78e matthiasS-da: i35350: update UnstableTest annotations (#35486)
• 314e555887 daravep: [main] More memory efficient commitment reinit (#35371) (#35476)
• 49a99e8e38 dylant-da: Fix DamlPlugin stable package resource caching (#35463)
• eb823f88dd andris-da: [Flaky] name the timeouts in the LAPI test tool and fix their budgets (#35489)
• 95fec18c0c mikolajkoziel-da: Migrate command and jobs for package_kms_driver from canton_nightly workflow (#34598)
• 246c8e7d5b cgrigis-da: Add validateCondition in proto validation tooling (#35490)
• 414dac01d0 mlachkar-da: fix AssignmentBeforeUnassignmentIntegrationTest (#35491)
• 14767be9a6 rgugliel-da: Prepare for OSS code drop on 3.6 (#35501)
• a8ed5f0d3e andreaslochbihler-da: Move ACS commitment pipeline tables to stable migrations (#35344) (#35509)
• 11f9e99eb9 roger-bosman-da: [backport] ingest daml 2.4 stable (#35515)

tell-slack: canton