fix: replace puppetdbquery with native PQL queries

Replace deprecated dalen-puppetdbquery module with native puppetdb_query
function using PQL syntax to resolve URI.escape compatibility issues.
This is required to migrated to Puppet 8 (and kubernetes).

Changes:
- Remove dalen-puppetdbquery dependency from Puppetfile
- Replace query_nodes() calls with puppetdb_query() using PQL syntax
- Update 27 function calls across 18 Puppet manifests
- Maintain equivalent functionality with improved compatibility

modules/stalwart/manifests/init.pp

@@ -167,7 +167,13 @@ class stalwart (
 
   # Query cluster members for validation
   $cluster_query = "enc_role='${cluster_role}' and country='${facts['country']}' and region='${facts['region']}'"
-  $cluster_members_raw = query_nodes($cluster_query, 'networking.fqdn')
+  $cluster_members_raw = puppetdb_query(
+    "inventory[networking.fqdn] {
+      facts.enc_role = '${cluster_role}' and
+      facts.country = '${facts['country']}' and
+      facts.region = '${facts['region']}'
+    }"
+  ).map |$node| { $node['networking.fqdn'] }
   $cluster_members = $cluster_members_raw ? {
     undef   => [],
     default => $cluster_members_raw,
@@ -180,7 +186,13 @@ class stalwart (
 
   # Query HAProxy nodes for proxy trusted networks
   $haproxy_query = "enc_role='${haproxy_role}' and country='${facts['country']}' and region='${facts['region']}'"
-  $haproxy_members_raw = query_nodes($haproxy_query, 'networking.ip')
+  $haproxy_members_raw = puppetdb_query(
+    "inventory[networking.ip] {
+      facts.enc_role = '${haproxy_role}' and
+      facts.country = '${facts['country']}' and
+      facts.region = '${facts['region']}'
+    }"
+  ).map |$node| { $node['networking.ip'] }
   $haproxy_ips = $haproxy_members_raw ? {
     undef   => [],
     default => sort($haproxy_members_raw),