crontab mount dir should exists

roles/matrix-jitsi/tasks/setup_jitsi_web.yml

@@ -15,6 +15,7 @@
     - { path: "{{ matrix_jitsi_web_base_path }}", when: true }
     - { path: "{{ matrix_jitsi_web_config_path }}", when: true }
     - { path: "{{ matrix_jitsi_web_transcripts_path }}", when: true }
+    - { path: "{{ matrix_jitsi_web_crontabs_path }}", when: true }
   when: matrix_jitsi_enabled|bool and item.when
 
 - name: Ensure jitsi-web Docker image is pulled