upstream ci: Allow tasks to retry in case of connection failure.

Some tasks used to setup Azure environment might fail to temporary
errors like timeouts and connection failures. Allowing the tasks to
retry a few times will allow the test to be correctly executed rather
than returning an error that is not related to the feature tested.

tests/azure/templates/playbook_tests.yml

@@ -34,20 +34,25 @@ jobs:
       pip install \
         "molecule[docker]>=3" \
         "ansible${{ parameters.ansible_version }}"
+    retryCountOnTaskFailure: 5
     displayName: Install molecule and Ansible
 
   - script: ansible-galaxy collection install community.docker ansible.posix
+    retryCountOnTaskFailure: 5
     displayName: Install Ansible collections
 
   - script: pip install -r requirements-tests.txt
+    retryCountOnTaskFailure: 5
     displayName: Install dependencies
 
   - script: |
+      rm -rf ~/ansible
       mkdir -p ~/.ansible/roles ~/.ansible/library ~/.ansible/module_utils
       cp -a roles/* ~/.ansible/roles
       cp -a plugins/modules/* ~/.ansible/library
       cp -a plugins/module_utils/* ~/.ansible/module_utils
       molecule create -s ${{ parameters.scenario }}
+    retryCountOnTaskFailure: 5
     displayName: Setup test container
     env:
       ANSIBLE_LIBRARY: ./molecule