Update simple-html-tokenizer requirement from ^0.1.1 to ^0.5.7

Updates the requirements on [simple-html-tokenizer](https://github.com/tildeio/simple-html-tokenizer) to permit the latest version.
- [Release notes](https://github.com/tildeio/simple-html-tokenizer/releases)
- [Commits](tildeio/simple-html-tokenizer@v0.1.1...v0.5.7)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -116,7 +116,7 @@
     "popper.js": "^1.15.0",
     "proj4": "^2.5.0",
     "raven-js": "^3.27.1",
-    "simple-html-tokenizer": "^0.1.1",
+    "simple-html-tokenizer": "^0.5.7",
     "sinon": "^7.3.2",
     "svg-inline-loader": "^0.8.0",
     "svgo": "^1.2.2",