correct the name of the ippidb apache service stopped

ansible/deploy.yaml

@@ -130,7 +130,7 @@
     - name: stop "generic" httpd service if relevant
       systemd: state=stopped name=httpd
     - name: stop iPPIDB service if relevant
-      systemd: state=stopped name=ippidb-web
+      systemd: state=stopped name=ippidb{{ http_port }}-web
       #ignore fail (i.e. when service does not exist yet)
       ignore_errors: yes
     - name: stop celery service