chore(common): update image ghcr.io/cloudnative-pg/postgresql digest to 030109b (#45311)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/cloudnative-pg/postgresql | digest | `4c1d5af` → `030109b` |

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charts/library/common/Chart.yaml

@@ -50,4 +50,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/library/common
   - https://hub.docker.com/_/
 type: library
-version: 28.31.22
+version: 28.31.23
+

charts/library/common/values.yaml

@@ -643,7 +643,7 @@ mongodbClientImage:
 
 postgres15Image:
   repository: ghcr.io/cloudnative-pg/postgresql
-  tag: "15.15@sha256:4c1d5afdd4f735ff1328cbe39758f4b107a005937dd04183102e278b17b8b4c4"
+  tag: "15.15@sha256:030109b6f7555254fedd4b32e014ff211c8798fb8cae9560fe959eaa24276c3d"
   pullPolicy: IfNotPresent
 
 postgres16Image: