Description of problem:

The GitHub action which is building the `next-1.8` image is failing: https://github.com/redhat-developer/rhdh/actions/workflows/next-build-image.yaml?query=branch%3Arelease-1.8

https://github.com/redhat-developer/rhdh/actions/runs/22497368864/job/65175304426
Error: buildx failed with: ERROR: failed to build: failed to solve: failed to parse stage name "registry.access.redhat.com/ubi9/nodejs-22:9.7-1770626511@": invalid reference format

This is caused by a missing digest here: https://github.com/redhat-developer/rhdh/blob/release-1.8/docker/Dockerfile#L18

It first appeared in https://github.com/redhat-developer/rhdh/commit/28a9a08478d4b9f056d5ced93fef225f66fff89d

This is blocking PR checks for 1.8.

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

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Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):