fix(cicd): add merge_multiple as true to tests cicd for downloading coverage data

Author: koliver_kv

.github/workflows/tests.yml

@@ -144,6 +144,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           pattern: coverage-data-*
+          merge-multiple: "true"
 
       - name: Combine coverage data and display human readable report
         run: |