(PE-40508) Add infra-assistant to add_database plan

Adding the Infra Assistant DB following just as was done with PE
Patching in #531.

Author: abottchen

functions/pe_db_names.pp

@@ -9,10 +9,18 @@ function peadm::pe_db_names (
     'pe-rbac',
   ]
 
+  $pe_2025_3_or_later = SemVerRange('>= 2025.3.0')
   $pe_2025_or_later = SemVerRange('>= 2025.0.0')
   $pe_2023_8_or_later = SemVerRange('>= 2023.8.0')
 
   case $pe_ver {
+    # The infra-assistant was added in 2025.3.0
+    $pe_2025_3_or_later: {
+      $original_db_names + [
+        'pe-infra-assistant',
+      ]
+    }
+
     # The patching service was added in 2025.0.0
     $pe_2025_or_later: {
       $original_db_names + [