chore(deps): update postgres docker tag to v16 (#11)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| postgres | service | major | `14-alpine` -> `16-alpine` |
| postgres |  | major | `14-alpine` -> `16-alpine` |

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.github/workflows/test.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       postgres:
-        image: postgres:14-alpine
+        image: postgres:16-alpine
         env:
           POSTGRES_USER: user
           POSTGRES_PASSWORD: pass

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '3.7'
 services:
   database:
-    image: postgres:14-alpine
+    image: postgres:16-alpine
     ports:
       - 5432:5432
     environment: