Updated ghcr.io/stac-utils/stac-fastapi-pgstac docker tag to v5.0.3 (#267)

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

Author: renovate[bot]

charts/eoapi/values.yaml

@@ -369,7 +369,7 @@ stac:
       requestRate: 100000m
   image:
     name: ghcr.io/stac-utils/stac-fastapi-pgstac
-    tag: 5.0.2
+    tag: 5.0.3
   command:
     - "uvicorn"
     - "stac_fastapi.pgstac.app:app"