Fix sand spinner missing in the types

sindresorhus · sindresorhus · commit 87f41c904160 · 2023-11-24T17:49:49.000+01:00
Closes #69
diff --git a/index.d.ts b/index.d.ts
@@ -13,6 +13,7 @@ declare namespace cliSpinners {
 		| 'dots11'
 		| 'dots12'
 		| 'dots8Bit'
+		| 'sand'
 		| 'line'
 		| 'line2'
 		| 'pipe'
