Remove the version: line because Docker made it obsolete (#172)

install/docker/build.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services: 
   onlyoffice-backup-background-tasks:
     build:

install/docker/db.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services:
   onlyoffice-mysql-server:
     image: ${MYSQL_IMAGE}

install/docker/dnsmasq.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 services:
   dnsmasq:
     image: jpillora/dnsmasq

install/docker/docspace.overcome.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-profiles-local: &x-profiles-local
   profiles: ["backend-local"]
   environment:

install/docker/docspace.profiles.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-healthcheck: &x-healthcheck
   test: curl --fail http://127.0.0.1 || exit 1
   interval: 60s

install/docker/docspace.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-healthcheck:
   &x-healthcheck
   test: curl --fail http://127.0.0.1 || exit 1

install/docker/ds.yml

@@ -1,4 +1,3 @@
-version: '3.6'
 services:
   onlyoffice-document-server:
     image: "${DOCUMENT_SERVER_IMAGE_NAME}"

install/docker/healthchecks.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-service: 
     &x-service-base
     container_name: base

install/docker/kafka.yml

@@ -1,4 +1,3 @@
-version: "3.6"
 services:  
   onlyoffice-zookeeper:
     image: zookeeper:latest

install/docker/migration-runner.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 services:
   onlyoffice-migration-runner:
     image: "${REPO}/${DOCKER_IMAGE_PREFIX}-migration-runner:${DOCKER_TAG}"

install/docker/notify.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-healthcheck:
   &x-healthcheck
   test: curl --fail http://127.0.0.1 || exit 1

install/docker/opensearch.yml

@@ -1,4 +1,3 @@
-version: "3"
 services:
   onlyoffice-opensearch:
     image: onlyoffice/opensearch:${ELK_VERSION}

install/docker/proxy-ssl.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-healthcheck:
   &x-healthcheck
   test: curl --fail http://127.0.0.1 || exit 1

install/docker/proxy.yml

@@ -1,4 +1,3 @@
-version: "3.8"
 x-healthcheck:
   &x-healthcheck
   test: curl --fail http://127.0.0.1 || exit 1

install/docker/rabbitmq.yml

@@ -1,4 +1,3 @@
-version: "3"
 services:
   onlyoffice-rabbitmq:
     image: rabbitmq:3

install/docker/redis.yml

@@ -1,4 +1,3 @@
-version: "3"
 services:
   onlyoffice-redis:
     image: redis:7