chore(python): update unittest workflow template (#964)

Source-Link: googleapis/synthtool@e6f91eb
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:365d92ef2206cfad00a8c5955c36789d0de124e2b6d92a72dd0486315a0f2e57

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:2dc6f67639bee669c33c6277a624ab9857d363e2fd33ac5b02d417b7d25f1ffc
-# created: 2024-08-15T17:41:26.438340772Z
+  digest: sha256:365d92ef2206cfad00a8c5955c36789d0de124e2b6d92a72dd0486315a0f2e57
+# created: 2024-09-04T14:50:52.658171431Z

.github/workflows/unittest.yml

@@ -30,6 +30,7 @@ jobs:
       with:
         name: coverage-artifact-${{ matrix.python }}
         path: .coverage-${{ matrix.python }}
+        include-hidden-files: true
 
   cover:
     runs-on: ubuntu-latest