removed version from all compose files to silence warning

compose.ci.yaml

@@ -1,4 +1,3 @@
-version: '2'
 services:
   db:
     image: postgres:10.6

compose.local-test.yaml

@@ -1,4 +1,3 @@
-version: '3'
 services:
   db:
     image: postgres:16-alpine

compose.yaml

@@ -1,5 +1,4 @@
-version: '3'
-services:
+services:
   db:
     image: postgres:16-alpine
     ports: