[etherpad] update to 1.8.6

pica-etherpad/Dockerfile

@@ -5,7 +5,7 @@ ENV NODE_ENV=production
 
 FROM base as downloader
 
-ARG ETHERPAD_VERSION_BUILD=1.8.4
+ARG ETHERPAD_VERSION_BUILD=1.8.6
 ARG ETHERPAD_PLUGINS="\
   ep_adminpads2 ep_align ep_author_hover ep_back_button ep_chatdate \
   ep_comments_page ep_delete_after_delay ep_delete_empty_pads ep_font_color \

pica-etherpad/docker-compose.yml

@@ -20,7 +20,7 @@ networks:
 
 services:
   etherpad-app:
-    image: registry.picasoft.net/pica-etherpad:1.8.4
+    image: registry.picasoft.net/pica-etherpad:1.8.6
     build: .
     container_name: etherpad-app
     env_file: ./secrets/etherpad-app.secrets
@@ -58,7 +58,7 @@ services:
     restart: unless-stopped
 
   etherpad-week-app:
-    image: registry.picasoft.net/pica-etherpad:1.8.4
+    image: registry.picasoft.net/pica-etherpad:1.8.6
     container_name: etherpad-week-app
     build: .
     env_file: ./secrets/etherpad-week-app.secrets