fix: remove deprecated compose version tag

examples/rxresume/docker-compose-v3.yml

@@ -1,5 +1,3 @@
-version: "3.8"
-
 # This docker compose example targets rxresume < 4.0
 # For a newer version, please see https://github.com/AmruthPillai/Reactive-Resume/tree/main/tools/compose
 
@@ -22,6 +20,7 @@ version: "3.8"
 # https://github.com/AmruthPillai/Reactive-Resume/issues/721#issuecomment-1405283786
 
 services:
+
   postgres:
     image: postgres:16-alpine
     container_name: rxresume-db

examples/rxresume/docker-compose-v4.yml

@@ -1,6 +1,5 @@
-version: "3.8"
-
 services:
+
   postgres:
     image: postgres:16-alpine
     container_name: rx-db