The self-hosted runner: k8s-fmt-public-runners-k8vmd-nv6j9 lost communication with the server. Verify the machine is running and has a healthy network connection. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Failed to download action 'https://api.github.com/repos/actions/checkout/tarball/a5ac7e51b41094c92402da3b24376905380afc29'. Error: Resource temporarily unavailable (api.github.com:443)

Back off 25.602 seconds before retry.

Failed to download action 'https://api.github.com/repos/hashicorp/vault-action/tarball/d1720f055e0635fd932a1d2a48f87a666a57906c'. Error: Resource temporarily unavailable (codeload.github.com:443)

Back off 23.625 seconds before retry.

Failed to download action 'https://api.github.com/repos/hashicorp/vault-action/tarball/d1720f055e0635fd932a1d2a48f87a666a57906c'. Error: Resource temporarily unavailable (api.github.com:443)