fix(48912): fractionalSecondDigits is 1, 2 or 3. (#49042)

Author: mstssk

src/lib/es2021.intl.d.ts

@@ -5,7 +5,7 @@ declare namespace Intl {
         dateStyle?: "full" | "long" | "medium" | "short" | undefined;
         timeStyle?: "full" | "long" | "medium" | "short" | undefined;
         dayPeriod?: "narrow" | "short" | "long" | undefined;
-        fractionalSecondDigits?: 0 | 1 | 2 | 3 | undefined;
+        fractionalSecondDigits?: 1 | 2 | 3 | undefined;
     }
 
     interface DateTimeRangeFormatPart extends DateTimeFormatPart {

tests/lib/lib.d.ts

@@ -3956,7 +3956,7 @@ declare module Intl {
         hour?: "numeric" | "2-digit";
         minute?: "numeric" | "2-digit";
         second?: "numeric" | "2-digit";
-        fractionalSecondDigits?: 0 | 1 | 2 | 3;
+        fractionalSecondDigits?: 1 | 2 | 3;
         timeZoneName?: "long" | "short";
     }