Set alembic path_separator and pin postgres 17

.github/workflows/main.yml

@@ -44,7 +44,7 @@ jobs:
             run: uv run pytest tests/migrations --override-ini=addopts=
     services:
       postgres:
-        image: postgres:latest
+        image: postgres:17
         env:
           POSTGRES_DB: postgres
           POSTGRES_PASSWORD: password

alembic.ini

@@ -10,6 +10,7 @@ file_template = %%(year)d-%%(month).2d-%%(day).2d_%%(slug)s
 # sys.path path, will be prepended to sys.path if present.
 # defaults to the current working directory.
 prepend_sys_path = .
+path_separator = os
 
 # timezone to use when rendering the date
 # within the migration file as well as the filename.

docker-compose.yml

@@ -20,7 +20,7 @@ services:
       ["uv", "run", "python", "-m", "app"]
 
   db:
-    image: postgres:14
+    image: postgres:17
     restart: always
     environment:
       - POSTGRES_PASSWORD=password