Update postgres Docker tag to v17.3 (#691)

| datasource | package  | from | to   |
| ---------- | -------- | ---- | ---- |
| docker     | postgres | 17.2 | 17.3 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/benchmark.yml

@@ -14,7 +14,7 @@ jobs:
     services:
       postgres:
         # Docker Hub image
-        image: "postgres:17.2"
+        image: "postgres:17.3"
         # Provide the password for postgres
         env:
           POSTGRES_PASSWORD: postgres