fix: #1430 sync is keeping chunks in memory

7 jobs for !1400 with 1430-sync-uses-too-much-ram-even-without-gva-enabled in 20 minutes and 58 seconds (queued for 4 seconds)
latest detached
Status Name Job ID Coverage
  Tests
passed tests #55148
redshift

00:16:12

69.33%
 
  Package
manual package:test:docker-test-image #55150
redshift allowed to fail manual
manual releases:test #55149
redshift allowed to fail manual
 
  Quality
passed audit_dependencies #55152
redshift

00:02:06

passed fmt_and_clippy #55151
redshift

00:04:46

 
  Integration
manual sync_g1 #55153
redshift allowed to fail manual
manual sync_gtest #55154
redshift allowed to fail manual