Add Saudi National Day holiday (#171)

Add Saudi National Day holiday (#171)

When is Saudi National Day in Saudi Arabia? - Holiday API

diff --git a/vendor/holidays/definitions/sa.yaml b/vendor/holidays/definitions/sa.yaml
index 7ab1f6b..1db609f 100644
--- a/vendor/holidays/definitions/sa.yaml
+++ b/vendor/holidays/definitions/sa.yaml
@@ -23,3 +23,7 @@ months:
     mday: 22
     year_ranges:
       limited: [2021]
+  9:
+  - name: Saudi National Day
+    regions: [sa]
+    mday: 23
diff --git a/vendor/holidays/lib/generated_definitions/sa.rb b/vendor/holidays/lib/generated_definitions/sa.rb
index 9049892..400ad21 100644
--- a/vendor/holidays/lib/generated_definitions/sa.rb
+++ b/vendor/holidays/lib/generated_definitions/sa.rb
@@ -15,7 +15,8 @@ module Holidays
                 7 => [{:mday => 19, :year_ranges => { :limited => [2021] },:name => "Day of Arafah", :regions => [:sa]},
             {:mday => 20, :year_ranges => { :limited => [2021] },:name => "Day 1 of Eid Al Adha", :regions => [:sa]},
             {:mday => 21, :year_ranges => { :limited => [2021] },:name => "Day 2 of Eid Al Adha", :regions => [:sa]},
-            {:mday => 22, :year_ranges => { :limited => [2021] },:name => "Day 3 of Eid Al Adha", :regions => [:sa]}]
+            {:mday => 22, :year_ranges => { :limited => [2021] },:name => "Day 3 of Eid Al Adha", :regions => [:sa]}],
+      9 => [{:mday => 23, :name => "Saudi National Day", :regions => [:sa]}]
       }
     end
 

GitHub sha: 964e4e83161a6311790d1a3a627dd75f7e343f82

This commit appears in #171 which was approved by tgxworld. It was merged by OsamaSayegh.