Race condition in `TestEventer/two_subscribers_to_topic` test

[JAORMX]

Describe the issue

The test TestEventer/two_subscribers_to_topic has a race condition:

❌ TestEventer/two_subscribers_to_topic (10ms)
      eventer_test.go:192: published event on "a"
      eventer_test.go:192: published event on "b"
      eventer_test.go:199: Expected 3 events
      eventer_test.go:201: awaiting event 0
      eventer_test.go:201: awaiting event 1
      eventer_test.go:201: awaiting event 2
  ==================
  WARNING: DATA RACE
  Write at 0x00c0000a8af0 by goroutine 10:
    runtime.closechan()
        /opt/hostedtoolcache/go/1.21.5/x64/src/runtime/chan.go:357 +0x0
    github.com/stacklok/minder/internal/events_test.TestEventer.func2.2()
        /home/runner/work/minder/minder/internal/events/eventer_test.go:164 +0x33
    runtime.deferreturn()
        /opt/hostedtoolcache/go/1.21.5/x64/src/runtime/panic.go:477 +0x30
    testing.tRunner()
        /opt/hostedtoolcache/go/1.21.5/x64/src/testing/testing.go:1595 +0x261
    testing.(*T).Run.func1()
        /opt/hostedtoolcache/go/1.21.5/x64/src/testing/testing.go:1648 +0x44
  
  Previous read at 0x00c0000a8af0 by goroutine 147:
    runtime.chansend()
        /opt/hostedtoolcache/go/1.21.5/x64/src/runtime/chan.go:160 +0x0
    github.com/stacklok/minder/internal/events_test.fakeHandler.func1()
        /home/runner/work/minder/minder/internal/events/eventer_test.go:64 +0x545
    github.com/stacklok/minder/internal/events.(*Eventer).Register.func1()
        /home/runner/work/minder/minder/internal/events/eventer.go:341 +0x82
    github.com/ThreeDotsLabs/watermill/message.(*Router).AddNoPublisherHandler.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router.go:334 +0x34
    github.com/ThreeDotsLabs/watermill/message/router/middleware.CorrelationID.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router/middleware/correlation.go:34 +0x49
    github.com/ThreeDotsLabs/watermill/message/router/middleware.Retry.Middleware-fm.Retry.Middleware.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router/middleware/retry.go:41 +0x78
    github.com/ThreeDotsLabs/watermill/message/router/middleware.poisonQueue.Middleware-fm.poisonQueue.Middleware.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router/middleware/poison.go:99 +0x13a
    github.com/stacklok/minder/internal/events.Setup.recordMetrics.func3.1()
        /home/runner/work/minder/minder/internal/events/eventer.go:206 +0xc9
    github.com/ThreeDotsLabs/watermill/components/metrics.HandlerPrometheusMetricsMiddleware.Middleware-fm.HandlerPrometheusMetricsMiddleware.Middleware.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/components/metrics/handler.go:58 +0x245
    github.com/ThreeDotsLabs/watermill/message.(*handler).handleMessage()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router.go:775 +0x28e
    github.com/ThreeDotsLabs/watermill/message.(*handler).run.func2()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router.go:620 +0x4f
  
  Goroutine 10 (running) created at:
    testing.(*T).Run()
        /opt/hostedtoolcache/go/1.21.5/x64/src/testing/testing.go:1648 +0x845
    github.com/stacklok/minder/internal/events_test.TestEventer()
        /home/runner/work/minder/minder/internal/events/eventer_test.go:161 +0x16e4
    testing.tRunner()
        /opt/hostedtoolcache/go/1.21.5/x64/src/testing/testing.go:1595 +0x261
    testing.(*T).Run.func1()
        /opt/hostedtoolcache/go/1.21.5/x64/src/testing/testing.go:1648 +0x44
  
  Goroutine 147 (finished) created at:
    github.com/ThreeDotsLabs/watermill/message.(*handler).run()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router.go:620 +0x42a
    github.com/ThreeDotsLabs/watermill/message.(*Router).RunHandlers.func1()
        /home/runner/go/pkg/mod/github.com/!three!dots!labs/[email protected]/message/router.go:438 +0xd7
  ==================
      testing.go:1465: race detected during execution of test

make: *** [.mk/test.mk:26: test-silent] Error 1

To Reproduce

No response

What version are you using?

main