chore(deps): update postgresql docker tag to v18

Chart.lock

@@ -1,7 +1,7 @@
 dependencies:
 - name: postgresql
   repository: oci://registry-1.docker.io/bitnamicharts
-  version: 18.2.9
+  version: 18.2.6
 - name: postgresql-ha
   repository: oci://registry-1.docker.io/bitnamicharts
   version: 16.3.2
@@ -11,5 +11,5 @@ dependencies:
 - name: valkey
   repository: oci://registry-1.docker.io/bitnamicharts
   version: 3.0.31
-digest: sha256:f7b233c2f1ff6c23b7e2be333bad4babb936f509a5badaa90df82027d4d4082b
-generated: "2026-02-12T02:07:49.249550683Z"
+digest: sha256:4d1bf6f83610404e888172e3d78c8f39790f3a3929fa45e890643c9e2adee320
+generated: "2026-02-10T11:05:21.416300302Z"

Chart.yaml

@@ -43,7 +43,7 @@ dependencies:
   # https://github.com/bitnami/charts/blob/main/bitnami/postgresql
   - name: postgresql
     repository: oci://registry-1.docker.io/bitnamicharts
-    version: 18.2.9
+    version: 18.2.6
     condition: postgresql.enabled
   # https://github.com/bitnami/charts/blob/main/bitnami/postgresql-ha/Chart.yaml
   - name: postgresql-ha