Update ghcr.io/canonical/charmed-postgresql Docker tag to v16.10 (#1076)

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

Author: renovate[bot]

metadata.yaml

@@ -41,7 +41,7 @@ resources:
   postgresql-image:
     type: oci-image
     description: OCI image for PostgreSQL
-    upstream-source: ghcr.io/canonical/charmed-postgresql@sha256:57414a7884303f7963789b3933a09f5bb7fe90253a577679b5c47ec574b8bc91  # renovate: oci-image tag: 16.9-24.04_edge
+    upstream-source: ghcr.io/canonical/charmed-postgresql@sha256:90840a485bd7f5fae2a098ae75f7a8dc0d6a9444b59480d68f8063159115bed1  # renovate: oci-image tag: 16.10-24.04_edge
 
 peers:
   database-peers: