Bump postgres from 16.2-alpine to 16.3-alpine in /deployment/database

Bumps postgres from 16.2-alpine to 16.3-alpine.

---
updated-dependencies:
- dependency-name: postgres
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

deployment/database/Dockerfile

@@ -1,4 +1,4 @@
-FROM postgres:16.2-alpine
+FROM postgres:16.3-alpine
 LABEL maintainer="Ozren Dabić ([email protected])"
 
 ENV TZ=UTC \