fix: pass arguments correctly to isBase64 (#2574)

* fix: update version in package-lock.json

* fix: pass options to isBase64 correctly

Author: braaar

src/decorator/string/IsBase64.ts

@@ -26,7 +26,7 @@ export function IsBase64(
       name: IS_BASE64,
       constraints: [options],
       validator: {
-        validate: (value, args): boolean => isBase64(value, options),
+        validate: (value, args): boolean => isBase64(value, args?.constraints[0]),
         defaultMessage: buildMessage(eachPrefix => eachPrefix + '$property must be base64 encoded', validationOptions),
       },
     },