Don't enqueue unpublished changeset for closing

Created by: eseliger

Currently, this query matches unpublished changesets and they would get enqueued with Closing: true. The reconciler would actually attempt that then and (hopefully) fails. We should ideally never enqueue them, so this PR fixes that.

Created by: sourcegraph-bot

Notifying subscribers in CODENOTIFY files for diff f15c904291c085a50438e5ec845cf98f7687c447...0cfd8f77d1b21b5a2575f08244dda8e8b92e5b2f.

Notify	File(s)
@LawnGnome	enterprise/internal/campaigns/store/changesets.go enterprise/internal/campaigns/store/changesets_test.go

Created by: codecov[bot]

Codecov Report

Merging #16910 (0cfd8f7) into main (f15c904) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main   #16910   +/-   ##
=======================================
  Coverage   45.43%   45.43%           
=======================================
  Files        1443     1443           
  Lines       73890    73892    +2     
  Branches     4888     4888           
=======================================
+ Hits        33571    33573    +2     
  Misses      36454    36454           
  Partials     3865     3865           

Flag	Coverage Δ		*Carryforward flag
go	51.36% <100.00%> (+<0.01%)
typescript	21.56% <ø> (ø)		Carriedforward from f15c904
unit	21.56% <ø> (ø)		Carriedforward from f15c904

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
enterprise/internal/campaigns/store/changesets.go	83.23% <100.00%> (+0.10%)