build: remove docker compose version

Remove `version` key from `docker-compose.yml` and `docker-compose.dev.yml` files. Fixes: ```sh docker-compose.dev.yml: the attribute `version` is obsolete, it will be ignored, please remove it to avoid potential confusion. ```
OxfordRSE · Nov 17, 2024 · 1cfa941 · 1cfa941
1 parent f95a376
commit 1cfa941
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diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
@@ -1,5 +1,3 @@
-version: '3.9'
-
 x-vol-args: &args
   volumes: 
     - ./.material:/app/.material

diff --git a/docker-compose.yml b/docker-compose.yml
@@ -1,6 +1,4 @@
 # Use postgres/example user/password credentials
-version: "3.9"
-
 services:
   nginx:
     image: nginx:${NGINX_IMAGE_TAG} # stable-alpine3.19