cron: panic running job: duplicate metrics collector registration attempted

[4-FLOSS-Free-Libre-Open-Source-Software]

Describe the bug

Scheduling panic

Steps to reproduce

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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

check will be performed

Screenshots

No response

Environment

• Platform
  linux
• Architecture
  x64
• Docker Version
  Docker Desktop 4.25.2 (129061)

Your logs

time="2023-11-30T19:06:45+01:00" level=info msg="Watchtower 1.7.1"
time="2023-11-30T19:06:46+01:00" level=info msg="Using no notifications"
time="2023-11-30T19:06:46+01:00" level=info msg="Checking all containers (except explicitly disabled with label)"
time="2023-11-30T19:06:46+01:00" level=info msg="Scheduling first run: 2023-11-30 19:06:46 +0100 CET"
time="2023-11-30T19:06:46+01:00" level=info msg="Note that the first check will be performed in 0 seconds"
2023/11/30 19:06:53 cron: panic running job: duplicate metrics collector registration attempted
goroutine 82 [running]:
github.com/robfig/cron.(*Cron).runWithRecovery.func1()
        /home/runner/go/pkg/mod/github.com/robfig/[email protected]/cron.go:161 +0x69
panic({0xaec580, 0xc0003ae1a0})
        /opt/hostedtoolcache/go/1.18.10/x64/src/runtime/panic.go:838 +0x207
github.com/prometheus/client_golang/prometheus.(*Registry).MustRegister(0xc0001bb770?, {0xc0003a8870?, 0x1, 0x1?})
        /home/runner/go/pkg/mod/github.com/prometheus/[email protected]/prometheus/registry.go:405 +0x7f
github.com/prometheus/client_golang/prometheus/promauto.Factory.NewGauge({{0xc80de0?, 0xc0001bb770?}}, {{0x0, 0x0}, {0x0, 0x0}, {0xb7d533, 0x1d}, {0xb94759, 0x4b}, ...})
        /home/runner/go/pkg/mod/github.com/prometheus/[email protected]/prometheus/promauto/auto.go:297 +0xd3
github.com/prometheus/client_golang/prometheus/promauto.NewGauge(...)
        /home/runner/go/pkg/mod/github.com/prometheus/[email protected]/prometheus/promauto/auto.go:191
github.com/containrrr/watchtower/pkg/metrics.Default()
        /home/runner/work/watchtower/watchtower/pkg/metrics/metrics.go:55 +0x8d
github.com/containrrr/watchtower/pkg/metrics.RegisterScan(...)
        /home/runner/work/watchtower/watchtower/pkg/metrics/metrics.go:85
github.com/containrrr/watchtower/cmd.runUpgradesOnSchedule.func1()
        /home/runner/work/watchtower/watchtower/cmd/root.go:329 +0x105
github.com/robfig/cron.FuncJob.Run(0x0?)
        /home/runner/go/pkg/mod/github.com/robfig/[email protected]/cron.go:92 +0x1a
github.com/robfig/cron.(*Cron).runWithRecovery(0x0?, {0xc7e060?, 0xc0001cc5a0?})
        /home/runner/go/pkg/mod/github.com/robfig/[email protected]/cron.go:165 +0x62
created by github.com/robfig/cron.(*Cron).run
        /home/runner/go/pkg/mod/github.com/robfig/[email protected]/cron.go:199 +0x79f

Additional context

No response

[github-actions]

Hi there! 👋🏼 As you're new to this repo, we'd like to suggest that you read our code of conduct as well as our contribution guidelines. Thanks a bunch for opening your first issue! 🙏

[piksel]

Please fill in the form. What configuration are you using? How are you starting watchtower? Did this work on a previous version?