feat: setup postgres in woodpecker

.woodpecker.yml

@@ -1,7 +1,10 @@
 pipeline:
   backend:
     image: rust
+    environment:
+      - DATABSE_URL=postgres://postgres:password@database:5432/postgres
     commands:
+      - make migrate
       - make
       - make test
 
@@ -13,3 +16,9 @@ pipeline:
         from_secret: DOCKER_TOKEN
       repo: realaravinth/librepages-forms
       tags: latest
+
+services:
+  database:
+    image: postgres
+    environment:
+      - POSTGRES_PASSWORD=password