Update docker.io/postgres Docker tag to v18

.gitea/workflows/lint-test-helm.yaml

@@ -61,6 +61,7 @@ jobs:
           if [ "${{ github.event_name }}" == "pull_request" ]; then
             echo ""
             echo ">> Checking for changes in a pull request ..."
+            git diff --name-only "${BASE_BRANCH}" | xargs -I {} dirname {} | sort -u | grep -E "clusters/[^/]+/helm/[^/]+"
             GIT_DIFF=$(git diff --name-only "${BASE_BRANCH}" | xargs -I {} dirname {} | sort -u | grep -E "clusters/[^/]+/helm/[^/]+")
           else
             echo ""

hosts/ps10rp/gitea/compose.yaml

@@ -19,7 +19,7 @@ services:
             - /dev/net/tun:/dev/net/tun
 
     postgresql:
-        image: docker.io/postgres:17.7-alpine3.21
+        image: docker.io/postgres:18.1-alpine3.21
         container_name: gitea-postgres
         env_file:
             - .env