CI: Conformance Runtime (ci-runtime): TestDiffUpsertCoalesce: Expected 2 upserted objects

[rgo3]

CI failure

...
level=info msg=Invoked duration="141.063µs" function="store.newDiffStoreFixture.func3 (pkg/bgpv1/manager/store/diffstore_test.go:55)" subsys=hive
level=info msg=Starting subsys=hive
level=info msg="Start hook executed" duration="3.157µs" function="*resource.resource[*v1.Service].Start" subsys=hive
level=info msg="Start hook executed" duration="3.978µs" function="*job.group.Start" subsys=hive
level=info msg=Started duration="73.868µs" subsys=hive
level=info msg=Stopping subsys=hive
level=info msg="Stop hook executed" duration="18.916µs" function="*job.group.Stop" subsys=hive
level=info msg="Stop hook executed" duration="30.036µs" function="*resource.resource[*v1.Service].Stop" subsys=hive
level=info msg=Invoked duration="208.258µs" function="store.newDiffStoreFixture.func3 (pkg/bgpv1/manager/store/diffstore_test.go:55)" subsys=hive
level=info msg=Starting subsys=hive
level=info msg="Start hook executed" duration="1.583µs" function="*resource.resource[*v1.Service].Start" subsys=hive
level=info msg="Start hook executed" duration="10.9µs" function="*job.group.Start" subsys=hive
level=info msg=Started duration="134.861µs" subsys=hive
--- FAIL: TestDiffUpsertCoalesce (1.00s)
    diffstore_test.go:229: Expected 2 upserted objects
FAIL
coverage: 1.5% of statements
FAIL	github.com/cilium/cilium/pkg/bgpv1/manager/store	1.304s
...

Artifact:
cilium-junits.zip

Occurance:
https://github.com/cilium/cilium/actions/runs/8063486326/job/22025465795

Looking at the test itself, there's a time.Sleep() in there. Would assume that this is causing the flakiness of the test.