Github Actions: unit spec flakes

[aramprice]

• https://github.com/cloudfoundry/bosh/actions/runs/19586373620/job/56096002421?pr=2646
• https://github.com/cloudfoundry/bosh/actions/runs/19581262154/job/56079435801?pr=2645

[rkoster]

Failures:

  1) Bosh::Director::Jobs::UpdateRelease::PackagePersister PackagePersister.persist Compiled release upload should process packages for compiled release
     Failure/Error: expect(p.compiled_packages.first.sha1).to eq('compiled-sha1-1')

       expected: "compiled-sha1-1"
            got: "compiled-sha1-2"

       (compared using ==)
     # ./spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb:102:in `block (5 levels) in <module:Jobs>'
     # ./spec/unit/bosh/director/jobs/update_release/package_persister_spec.rb:99:in `block (4 levels) in <module:Jobs>'
     # ./spec/spec_helper.rb:67:in `block in reset_database'
     # ./spec/spec_helper.rb:66:in `reset_database'
     # ./spec/spec_helper.rb:156:in `block (2 levels) in <top (required)>'

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1289 examples, 1 failure