deps: update to uvwasi 0.0.13

Notable changes:

- A bug has been fixed in `uvwasi_fd_readdir()` that caused
  the number of entries to be processed incorrectly.

PR-URL: #44524
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Mohammed Keyvanzadeh <[email protected]>

Author: cjihrig

deps/uvwasi/include/uvwasi.h

@@ -10,7 +10,7 @@ extern "C" {
 
 #define UVWASI_VERSION_MAJOR 0
 #define UVWASI_VERSION_MINOR 0
-#define UVWASI_VERSION_PATCH 12
+#define UVWASI_VERSION_PATCH 13
 #define UVWASI_VERSION_HEX ((UVWASI_VERSION_MAJOR << 16) | \
                             (UVWASI_VERSION_MINOR <<  8) | \
                             (UVWASI_VERSION_PATCH))

deps/uvwasi/src/uvwasi.c

@@ -1384,8 +1384,14 @@ uvwasi_errno_t uvwasi_fd_readdir(uvwasi_t* uvwasi,
       }
 
       /* Write dirent to the buffer if it will fit. */
-      if (UVWASI_SERDES_SIZE_dirent_t + *bufused > buf_len)
+      if (UVWASI_SERDES_SIZE_dirent_t + *bufused > buf_len) {
+        /* If there are more entries to be written to the buffer we set
+         * bufused, which is the return value, to the length of the buffer
+         * which indicates that there are more entries to be read.
+         */
+        *bufused = buf_len;
         break;
+      }
 
       uvwasi_serdes_write_dirent_t(buf, *bufused, &dirent);
       *bufused += UVWASI_SERDES_SIZE_dirent_t;