You can convert html to a string

`html.replace`
in
`String(html).replace`

And this error does not occur when working with SVG files

```/resourses/node_modules/juice/lib/cheerio.js:19
html = html.replace(re, function(match, subMatch) {
^

TypeError: html.replace is not a function
at /home/rtx/resourses/node_modules/juice/lib/cheerio.js:19:17
at Array.forEach (native)
at encodeCodeBlocks (/home/rtx/resourses/node_modules/juice/lib/cheerio.js:17:23)
at encodeEntities (/home/rtx/resourses/node_modules/juice/lib/cheerio.js:38:10)
at cheerioLoad (/home/rtx/resourses/node_modules/juice/lib/cheerio.js:11:10)
at module.exports (/home/rtx/resourses/node_modules/juice/lib/cheerio.js:55:11)
at /home/rtx/resourses/node_modules/juice/client.js:16:10
at juiceFile (/home/rtx/resourses/toAttribute.js:13:12)
at withFile (/home/rtx/resourses/toAttribute.js:22:28)
at callIterator (/home/rtx/resourses/node_modules/each-file/index.js:46:7)
```

Start in node_modules/juice/lib/cheerio.js, especially encodeCodeBlocks where html.replace is called, and reproduce the reported TypeError with the HTML input. Verify that the reported HTML case no longer fails while the existing SVG behavior remains unaffected.

Written by the indexing model from the issue text.