Restart Apache when restarting Tor during installation

If the configuration of v2 and v3 services is modified, Apache needs
to be restarted for the app config to reflect the changes, so that
migration warnings are accurate.

install_files/ansible-base/roles/tor-hidden-services/handlers/restart-tor-carefully.yml

@@ -29,6 +29,12 @@
     state: started
   become: no
 
+- name: Restart Apache to pick up Tor configuration changes
+  service:
+    name: apache2
+    state: restarted
+  when: "'securedrop_application_server' in group_names"
+
 - name: Refresh ansible local facts
   setup:
     filter: ansible_local