Fix use of uninitialized memory in tinfl_decompress_mem_to_callback()

Co-authored-by: sezero <sezero@users.noreply.github.com>

miniz_tinfl.c

@@ -699,6 +699,7 @@ int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size,
     size_t in_buf_ofs = 0, dict_ofs = 0;
     if (!pDict)
         return TINFL_STATUS_FAILED;
+    memset(pDict,0,TINFL_LZ_DICT_SIZE);
     tinfl_init(&decomp);
     for (;;)
     {