chore: remove version entry from docker-compose

changedetection/docker-compose.yml

@@ -1,4 +1,3 @@
-version: '3.2'
 services:
     changedetection:
       image: dgtlmoon/changedetection.io:latest

gitea/act_runner/docker-compose.yml

@@ -1,5 +1,4 @@
 # find documentation at https://docs.gitea.com/usage/actions/act-runner
-version: "3.8"
 services:
   runner:
     image: gitea/act_runner:latest

joplin/docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3'
-
 services:
     db:
         image: postgres:14

rancher/docker-compose.yml

@@ -1,4 +1,3 @@
-version: "3"
 services:
   rancher:
     image: rancher/rancher:stable

vaultwarden/docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3'
-
 services:
   vaultwarden:
     image: vaultwarden/server:latest