Switch to crates.io version of `wasm-bindgen`

[evdokimovs]

Related to #151

Synopsis

For implementation of ICE candidates error sending (#151) it was required to make changes in web-sys and because of it medea-jason started using git version of wasm-bindgen-related dependencies.

Now required feature was released in wasm-bindgen v0.2.92, so we can switch back to crates.io version of crate.

Solution

Switch back to crates.io version of wasm-bindgen-related dependencies.

Checklist

• Created PR:
  • [x] In draft mode
  • [x] Name contains issue reference
  • [x] Has type and k:: labels applied
  • [x] Has assignee
• Before review:
  • [x] Documentation is updated (if required)
  • [x] Tests are updated (if required)
  • [x] Changes conform code style
  • [x] CHANGELOG entry is added (if required)
  • [x] FCM (final commit message) is posted or updated
  • [x] Draft mode is removed
• [x] Review is completed and changes are approved
  • [x] FCM (final commit message) is approved
• Before merge:
  • [x] Milestone is set
  • [x] PR's name and description are correct and up-to-date
  • [x] All temporary labels are removed

[evdokimovs]

FCM

Upgrade `web-sys` crate to 0.3.68 version (#155)