Upgrade actions/upload-artifact to v4

.changeset/dirty-toes-tan.md

@@ -0,0 +1,5 @@
+---
+"saleor-dashboard": patch
+---
+
+Now CI workflows use updated action to upload and download artifacts

.github/actions/merge-pw-reports/action.yml

@@ -13,17 +13,18 @@ runs:
       run: npm ci
 
     - name: Download blob reports from GitHub Actions Artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
-        name: all-blob-reports
         path: all-blob-reports
+        pattern: all-blob-reports-*
+        merge-multiple: true
 
     - name: Merge into HTML Report
       shell: bash
       run: npx playwright merge-reports --reporter html ./all-blob-reports
 
     - name: Upload HTML report
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: html-report--attempt-${{ github.run_attempt }}
         path: playwright-report

.github/actions/run-pw-tests/action.yml

@@ -90,10 +90,17 @@ runs:
         done
         npx playwright test --grep @e2e $PROJECT_PARAMS --shard "$SHARD_NUMBER"
 
+    - name: Extract shard index
+      id: extract-shard-index
+      shell: bash
+      run: |
+          input=${{ inputs.SHARD }}
+          echo "shardIndex=${input%%/*}" >> $GITHUB_ENV
+
     - name: Upload blob report to GitHub Actions Artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: always()
       with:
-        name: all-blob-reports
+        name: all-blob-reports-${{ env.shardIndex }}
         path: blob-report
         retention-days: 1