fix(plan): replace await with wait in add_inventory_hostnames

- Change await to wait for better compatibility and readability
- Ensure all tasks complete before proceeding with the plan

Author: CoMfUcIoS

Diff for: spec/acceptance/peadm_spec/plans/add_inventory_hostnames.pp

@@ -4,15 +4,21 @@
   $t = get_targets('*')
   wait_until_available($t)
 
-  $fqdn_results = wait(
-    parallelize($t) |$target| {
-      $fqdn = run_command('hostname -f', $target)
-      $target.set_var('certname', $fqdn.first['stdout'].chomp)
+  $fqdn_results = $t.map |$target| {
+    $fqdn = run_command('hostname -f', $target).first
+    if $fqdn['exit_code'] != 0 {
+      fail("Failed to get FQDN for target ${target.name}: ${fqdn['stderr']}")
     }
-  )
+    $target.set_var('certname', $fqdn['stdout'].chomp)
+  }
 
   $fqdn_results.each |$result| {
-    $command = "yq eval '(.groups[].targets[] | select(.uri == \"${result.target.uri}\").name) = \"${result.value}\"' -i ${inventory_file}"
+    $command = "yq eval '(.groups[].targets[] | select(.uri == \"${uri}\").name) = \"${certname}\"' -i ${inventory_file}"
+    $result = run_command($command, 'localhost').first
+    if $result['exit_code'] != 0 {
+      fail("Failed to update inventory file for target ${uri}: ${result['stderr']}")
+    }
+    $command = "yq eval '(.groups[].targets[] | select(.uri == \"${uri}\").name) = \"${certname}\"' -i ${inventory_file}"
     run_command($command, 'localhost')
   }
 }