Docker compose: remove version

- obsolete according to docker compose specifications: https://docs.docker.com/compose/compose-file/04-version-and-name/
- implements feedback from #33259

source/_includes/installation/container.md

@@ -96,7 +96,6 @@ In order to use Zigbee or other integrations that require access to devices, you
   content: |
 
     ```yaml
-    version: '3'
     services:
       homeassistant:
         ...
@@ -125,7 +124,6 @@ As jemalloc can cause issues on certain hardware, it can be disabled by passing
   content: |
 
     ```yaml
-    version: '3'
     services:
       homeassistant:
       ...

source/_includes/installation/container/compose.md

@@ -1,5 +1,4 @@
 ```yaml
-  version: '3'
   services:
     homeassistant:
       container_name: homeassistant