fix: prepare jsHandle.uploadFile for CDP Page.handleFileChooser removal (#5196)

* fix: prepare jsHandle.uploadFile for CDP Page.handleFileChooser removal

https://chromium-review.googlesource.com/c/chromium/src/+/1935410
removes Page.handleFileChooser from the CDP.

* fix: improve binary file support

UTF-8-decoding the input file could fail for binary files, and so we
now read the raw file buffer and base64-encode it. To base64-decode it
within the page context, we use the Fetch API in combination with a
data URL. This requires knowing the proper MIME type for the input
file, which we now figure out using the new mime-types dependency.

package.json

@@ -30,10 +30,12 @@
   "author": "The Chromium Authors",
   "license": "Apache-2.0",
   "dependencies": {
+    "@types/mime-types": "^2.1.0",
     "debug": "^4.1.0",
     "extract-zip": "^1.6.6",
     "https-proxy-agent": "^3.0.0",
     "mime": "^2.0.3",
+    "mime-types": "^2.1.25",
     "progress": "^2.0.1",
     "proxy-from-env": "^1.0.0",
     "rimraf": "^2.6.1",