Update ghcr.io/cloudnative-pg/postgresql Docker tag to v18

.gitea/workflows/lint-test.yaml

@@ -129,6 +129,7 @@ jobs:
 
             for path in $GIT_DIFF; do
               CHANGED_CHARTS+=$(echo "$path" | awk -F '/' '{print $2}')
+              RENDER_DIR+=$(echo " ")
             done
 
           else
@@ -140,13 +141,13 @@ jobs:
           if [ -n "${CHANGED_CHARTS}" ]; then
             echo ""
             echo ">> Chart to Lint:"
-            echo "$(echo "${CHANGED_CHARTS[@]}" | sort -u)"
+            echo "$(echo "${CHANGED_CHARTS}" | sort -u)"
 
             echo "----"
 
             echo "changes-detected=true" >> $GITEA_OUTPUT
             echo "chart-dir<<EOF" >> $GITEA_OUTPUT
-            echo "$(echo "${CHANGED_CHARTS[@]}" | sort -u)" >> $GITEA_OUTPUT
+            echo "$(echo "${CHANGED_CHARTS}" | sort -u)" >> $GITEA_OUTPUT
             echo "EOF" >> $GITEA_OUTPUT
           else
             echo "changes-detected=false" >> $GITEA_OUTPUT

charts/postgres-cluster/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: postgres-cluster
-version: 6.16.1
+version: 6.17.0
 description: Cloudnative-pg Cluster
 keywords:
   - database

charts/postgres-cluster/values.yaml

@@ -20,7 +20,7 @@ cluster:
   # -- Default image
   image:
     repository: ghcr.io/cloudnative-pg/postgresql
-    tag: 17.7-standard-trixie
+    tag: 18.1-standard-trixie
 
   # -- Image pull policy. One of Always, Never or IfNotPresent. If not defined, it defaults to IfNotPresent. Cannot be updated.
   # More info: https://kubernetes.io/docs/concepts/containers/images#updating-images