chakrashim: fixing lint issue

Using `reinterpret_cast` instead of a C-style cast.

PR-URL: #347
Reviewed-By: Jimmy Thomson <jithomso@microsoft.com>

Author: kfarnung

deps/chakrashim/src/v8string.cc

@@ -102,7 +102,8 @@ int String::WriteOneByte(
     uint8_t* buffer, int start, int length, int options) const {
   size_t count = 0;
   if (JsCopyStringOneByte((JsValueRef)this, start, length,
-                          (char *)buffer, &count) == JsNoError) {
+                          reinterpret_cast<char *>(buffer),
+                          &count) == JsNoError) {
     if (!(options & String::NO_NULL_TERMINATION) &&
         (length == -1 || count < length)) {
       buffer[count] = '\0';