autofix-ci/action failed due to fatal: couldn't find remote ref refs/pull/*/head in some pull requests created by Renovate.

https://github.com/lintnet/lintnet.github.io/actions/runs/14117851840/job/39552170367?pr=673

- uses: autofix-ci/action@2891949f3779a1cafafae1523058501de3d4e944 # v1.3.1

/usr/bin/git fetch --depth=1 origin +refs/pull/673/head
fatal: couldn't find remote ref refs/pull/673/head
Error: The process '/usr/bin/git' failed with exit code 128

• https://github.com/aquaproj/aquaproj.github.io/actions/runs/14118562480/job/39554300329?pr=1457
• https://github.com/aquaproj/aqua-renovate-config/actions/runs/14117861284/job/39552198255?pr=858

I'm looking into the cause.
Before running autofix-ci/action, actions/checkout was run.

https://github.com/lintnet/lintnet.github.io/blob/134d2749e35f92bdb7159e782dad6cf24af2d688/.github/workflows/autofix.yaml#L11-L13

So I think refs/pull/*/head should have been fetched, but actually git fetch failed due to fatal: couldn't find remote ref refs/pull/*/head.