chore: fix duplicative checkpoint publish location (#1020)

## Description

Fixes a missed issue in the checkpoints PR wrt the location being
published to.

## Related Issue

Fixes #N/A

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [X] Other (security config, docs update, etc)

## Checklist before merging

- [X] Test, docs, adr added or updated as needed
- [X] [Contributor
Guide](https://github.com/defenseunicorns/uds-template-capability/blob/main/CONTRIBUTING.md)
followed

tasks/publish.yaml

@@ -46,7 +46,7 @@ tasks:
     actions:
       - description: "Publish the checkpoint package for the current UDS_ARCH"
         cmd: |
-          uds zarf package publish build/zarf-package-k3d-core-slim-dev-${UDS_ARCH}-${VERSION}.tar.zst oci://ghcr.io/defenseunicorns/dev/uds/checkpoints/k3d-core-slim-dev
+          uds zarf package publish build/zarf-package-k3d-core-slim-dev-${UDS_ARCH}-${VERSION}.tar.zst oci://ghcr.io/defenseunicorns/dev/uds/checkpoints
 
   - name: bundles
     description: "Publish UDS Bundles"