Eliminate obsolete version in compose files.

arbeitsschutz/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: true

buehler-tmp/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: true

common/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: false

huber-putz/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: true

kimai-scheidle/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 volumes:
   scheidle-app:
     name: scheidle-app

mail/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 networks:
   proxy:
     external: true
@@ -55,7 +53,7 @@ services:
     healthcheck:
       test: "ss --listening --tcp | grep -P 'LISTEN.+:smtp' || exit 1"
       timeout: 3s
-      retries: 0
+      retries: 1
     networks:
        - proxy
        - mail

monitoring/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: true

rist-editors/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 networks:
   proxy:
     external: true

rist-startup/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   startup-app:
     image: cs-git.ddnss.de/ri-st/startup

svj/docker-compose.yaml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 volumes:
   svj-media:
     name: svj-media