Containers from other registries stop updating if docker.io is inaccessible

[KostyaLocal]

Describe the bug

The update stops working if there are problems accessing docker.io.
Containers from other registries also stop updating

Steps to reproduce

Don't know how to reproduce

Expected behavior

The update continues to work for available registries

Screenshots

No response

Environment

• Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-48-generic x86_64)
  Docker version 27.3.1, build ce12230

Your logs

time="2024-11-13T20:20:14Z" level=warning msg="Could not do a head request for \"containrrr/watchtower:latest\", falling back to regular pull." container=/watchtower image="containrrr/watchtower:latest"
time="2024-11-13T20:20:14Z" level=warning msg="Reason: Get \"https://index.docker.io/v2/\": read tcp 172.17.0.7:36730->54.198.86.24:443: read: connection timed out" container=/watchtower image="containrrr/watchtower:latest"

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! 🙏