[Bug] PR Integration tests are failing due to legacy service shutdown on April 15, 2025

[qoke]

Is this a support request?

• [x] This is not a support request

Is there an existing issue for this?

• [x] I have searched the existing issues

Current Behavior

Integration tests are failing with the following errors:

error: unable to download 'http://127.0.0.1:37515/cq2irdgh5ijj948lradamq0n8n7m1ihn.narinfo': HTTP error 418

       response body:

       GitHub API error: GitHub Actions Cache throttled Magic Nix Cache. Not trying to use it again on this run.
this path will be fetched (0.10 MiB download, 0.10 MiB unpacked):
  /nix/store/cq2irdgh5ijj948lradamq0n8n7m1ihn-bash-interactive-5.2p37-man

error: unable to download 'http://127.0.0.1:37515/cq2irdgh5ijj948lradamq0n8n7m1ihn.narinfo': HTTP error 418

       response body:

       GitHub API error: API error (422 Unprocessable Entity): StructuredApiError { message: "This legacy service is shutting down, effective April 15, 2025. Migrate to the new service ASAP. For more information: https://gh.io/gha-cache-sunset" }
this path will be fetched (0.10 MiB download, 0.10 MiB unpacked):

Expected Behavior

Expect integration tests to run and report any integration issues

Steps To Reproduce

1. Raise a PR
2. Wait for the integration tests to run
3. Observe the deprecation error

Environment

- Github PR integration test issue

Headscale and Tailscale version not applicable.

Runtime environment

• [ ] Headscale is behind a (reverse) proxy
• [ ] Headscale runs in a container

Debug information

error: unable to download 'http://127.0.0.1:37515/cq2irdgh5ijj948lradamq0n8n7m1ihn.narinfo': HTTP error 418

       response body:

       GitHub API error: GitHub Actions Cache throttled Magic Nix Cache. Not trying to use it again on this run.
this path will be fetched (0.10 MiB download, 0.10 MiB unpacked):
  /nix/store/cq2irdgh5ijj948lradamq0n8n7m1ihn-bash-interactive-5.2p37-man

error: unable to download 'http://127.0.0.1:37515/cq2irdgh5ijj948lradamq0n8n7m1ihn.narinfo': HTTP error 418

       response body:

       GitHub API error: API error (422 Unprocessable Entity): StructuredApiError { message: "This legacy service is shutting down, effective April 15, 2025. Migrate to the new service ASAP. For more information: https://gh.io/gha-cache-sunset" }
this path will be fetched (0.10 MiB download, 0.10 MiB unpacked):