chore(deps): update actions/upload-artifact action to v6 (#1237)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

actions/image-build/action.yml

@@ -114,7 +114,7 @@ runs:
         touch "${{ runner.temp }}/digests/${digest#sha256:}"
 
     - name: Upload digest
-      uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
+      uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
       with:
         name: ${{ inputs.artifact-key-base }}-${{ steps.cache-target.outputs.cache-key-base }}
         path: ${{ runner.temp }}/digests/*