feat(common): update image ghcr.io/cloudnative-pg/postgresql 15.15 → 15.16 (#45316)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/cloudnative-pg/postgresql | minor | `4c1d5af` → `bc1ccea` |

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charts/library/common/Chart.yaml

@@ -50,5 +50,4 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/library/common
   - https://hub.docker.com/_/
 type: library
-version: 28.32.0
-
+version: 28.32.1

charts/library/common/values.yaml

@@ -643,7 +643,7 @@ mongodbClientImage:
 
 postgres15Image:
   repository: ghcr.io/cloudnative-pg/postgresql
-  tag: "15.15@sha256:030109b6f7555254fedd4b32e014ff211c8798fb8cae9560fe959eaa24276c3d"
+  tag: "15.16@sha256:bc1cceab7e23f0da9cbce1a0de818f6730e5c36ba2e67fa52299fb7f2db931a7"
   pullPolicy: IfNotPresent
 
 postgres16Image: