Does this need code upgrade? If so, what is the corresponding github link?
If not, what does the on chain vote actually do?

This runtime upgrade adds the following:

1. Tables proposals to referenda always on Monday morning at 9:00 UTC to get around the block time variance issue and make referenda execution predictable
2. Tables two proposals to referenda to account for the fact that treasury and regular proposals are happening in parallel

Updates Kintsugi to the latest runtime (**non-breaking**).

For more details, please see the following:

https://github.com/interlay/interbtc/releases/tag/1.20.1
https://github.com/interlay/interbtc/compare/1.20.0-hotfix+sub...1.20.1

The latest compatible clients release for this version is `v1.18.1`:

https://github.com/interlay/interbtc-clients/releases/tag/1.18.1

# Request for tabling

To not block other ongoing proposals, we request to table this proposal to a referendum for voting.

1. A new upgrade has been made to the SubSquare platform.
2. The upgrade includes two proposals to referenda to make the execution of referenda predictable.
3. The upgrade also includes an update to Kintsugi to the latest runtime.
4. The latest compatible clients release for this version is `v1.18.1`.
5. The proposal has been tabled for voting to avoid blocking other ongoing proposals.

Upgrade to runtime v1.20.1: Fix governance schedule to table on Monday morning and table two proposals

Request for tabling