Update SAR currency from Rial to Riyal in the i18n Java formatter and dart formatter.

Relevant bug for context: b/72983927

When you search on Google.com:
https://screenshot.googleplex.com/kkYppGCCtVY.png

(I am very new to this so there may be some things wrong here, but let's give it a try...)

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=198783034
diff --git a/lib/src/intl/number_format.dart b/lib/src/intl/number_format.dart
index 75c0a6c..8396584 100644
--- a/lib/src/intl/number_format.dart
+++ b/lib/src/intl/number_format.dart
@@ -445,7 +445,7 @@
     "IRR": "Rial",
     "KHR": "Riel",
     "MYR": "RM",
-    "SAR": "Rial",
+    "SAR": "Riyal",
     "BYR": "BYR",
     "RUB": "руб.",
     "MUR": "Rs",