Fix: Increase LKSM/KBTC SystemCollateralCeiling to 55,000

Proposal https://kintsugi.subsquare.io/democracy/referendum/97 was tabled and approved.

However, the proposal did not enact:

• At block 2629833: the LKSM ceiling increase proposal was made: https://kintsugi.subsquare.io/democracy/proposal/104
• At block 2634181: the governance upgrade proposal was applied (https://kintsugi.subscan.io/extrinsic/2634181-1?event=2634181-7). This upgrade deleted all existing preimages and resulted in any in-flight (the LKSM proposal above) to fail.

Request to fast-track by TC

As the original proposal already passed, we request to fast-track this proposal by the TC.