chore(deps): update docker.io/library/postgres:15.5 docker digest to …

…15b7f8d (#154)

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

[skip ci]

docker-compose/compose.fhir-server.yaml

@@ -35,7 +35,7 @@ services:
       - "8082:8080"
 
   fhir-db:
-    image: docker.io/library/postgres:15.5@sha256:89d430f5f7e680e67f81de534eb459a3b86afd818e3330d9b18d29a6b9ec98cd
+    image: docker.io/library/postgres:15.5@sha256:15b7f8dd3b75bc8f86ba8e875e92e560c03fd6314fe0a4d1315e169421aace01
     restart: unless-stopped
     deploy:
       resources: