Update Docker workflow to workaround upload action changes

.github/workflows/docker-build-push.yml

@@ -108,7 +108,48 @@ jobs:
           digest="${{ steps.build.outputs.digest }}"
           touch "/tmp/digests/${digest#sha256:}"
 
-      - name: 'Upload Digest'
+      - name: 'Check if Digests Artifact Exists and Merge'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const owner = context.repo.owner;
+            const repo = context.repo.repo;
+
+            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: owner,
+              repo: repo,
+              run_id: context.runId,
+              name: 'digests'
+            });
+
+            if (artifacts.data.total_count > 0) {
+              console.log('Digests artifact already uploaded - retrieving.');
+              const digests = await github.rest.actions.downloadArtifact({
+                owner,
+                repo,
+                artifact_id: artifacts.data.artifacts[0].id,
+                archive_format: 'zip'
+              });
+              require('fs').writeFileSync('/tmp/digests.zip', Buffer.from(digests.data));
+              require('child_process').execSync(`unzip -o /tmp/digests.zip -d /tmp/digests`);
+
+              console.log('Deleting already uploaded digests artifact.')
+              const result = await github.rest.actions.deleteArtifact({
+                owner: owner,
+                repo: repo,
+                artifact_id: artifacts.data.artifacts[0].id
+              });
+
+              if (result.status == 204) { 
+                return; 
+              } else {
+                core.setFailed('Error occured deleting existing digests artifact');
+              }
+            } else {
+              return;
+            }
+
+      - name: 'Upload Digests'
         uses: actions/upload-artifact@v4
         with:
           name: digests