[Systemd::Unit::Service] add support for LogRateLimit* options (#500)

* [Systemd::Unit::Service] add support for LogRateLimit* options

* fix order

Author: veshij

Diff for: REFERENCE.md

@@ -3280,6 +3280,8 @@ Struct[{
     Optional['StateDirectory']            => String,
     Optional['LogsDirectory']             => String,
     Optional['LogsDirectoryMode']         => Stdlib::Filemode,
+    Optional['LogRateLimitIntervalSec']   => Variant[Pattern[/^[0-9]+(s|min|h|ms|us)?$/]],
+    Optional['LogRateLimitBurst']         => Variant[Integer[0], Pattern[/^[0-9]+$/]],
     Optional['ProtectSystem']             => Variant[Boolean, Enum['full', 'strict']],
     Optional['ProtectHome']               => Variant[Boolean, Enum['read-only', 'tmpfs']],
     Optional['BindPaths']                 => Variant[Stdlib::Unixpath,Pattern[/-\/.+/], Array[Variant[Stdlib::Unixpath,Pattern[/-\/.+/]],1]],

Diff for: types/unit/service.pp

@@ -105,6 +105,8 @@
     Optional['StateDirectory']            => String,
     Optional['LogsDirectory']             => String,
     Optional['LogsDirectoryMode']         => Stdlib::Filemode,
+    Optional['LogRateLimitIntervalSec']   => Variant[Pattern[/^[0-9]+(s|min|h|ms|us)?$/]],
+    Optional['LogRateLimitBurst']         => Variant[Integer[0], Pattern[/^[0-9]+$/]],
     Optional['ProtectSystem']             => Variant[Boolean, Enum['full', 'strict']],
     Optional['ProtectHome']               => Variant[Boolean, Enum['read-only', 'tmpfs']],
     Optional['BindPaths']                 => Variant[Stdlib::Unixpath,Pattern[/-\/.+/], Array[Variant[Stdlib::Unixpath,Pattern[/-\/.+/]],1]],