fix: resolve warnings/errors

- modules/libs/lib/facter/pve_nodelist.rb:11:5: W: [Correctable] Lint/RedundantCopDisableDirective: Unnecessary disabling of Metrics/BlockNesting.a
- site/profiles/manifests/puppet/puppetboard.pp - WARNING: there should be a single space before '=>' on line 158, column 14 on line 158 (check: space_before_arrow)
- site/profiles/manifests/consul/client.pp - WARNING: there should be a single space before '=>' on line 93, column 13 on line 93 (check: space_before_arrow)
- site/profiles/manifests/ntp/client.pp - WARNING: there should be a single space before '=>' on line 44, column 16 on line 44 (check: space_before_arrow)
- site/profiles/manifests/puppet/enc.pp - WARNING: there should be a single space before '=>' on line 14, column 11 on line 14 (check: space_before_arrow)
- site/profiles/manifests/puppet/enc.pp - WARNING: there should be a single space before '=>' on line 18, column 11 on line 18 (check: space_before_arrow)

- set max block nesting to 4

.rubocop.yml

@@ -8,3 +8,6 @@ Style/Documentation:
 
 Layout/LineLength:
   Max: 140
+
+Metrics/BlockNesting:
+  Max: 4

modules/libs/lib/facter/pve_nodelist.rb

@@ -8,7 +8,6 @@ Facter.add('pve_nodelist') do
     conf_file = '/etc/pve/corosync.conf'
     node_list = {}
     current_node = nil
-    # rubocop:disable Metrics/BlockNesting
 
     if File.exist?(conf_file)
       File.foreach(conf_file) do |line|
@@ -28,8 +27,6 @@ Facter.add('pve_nodelist') do
       end
     end
 
-    # rubocop:enable Metrics/BlockNesting
-
     node_list.empty? ? nil : node_list
   end
 end