fix: bump polkadot-js deps

[TarikGul]

This introduced a problem when sanitizing leasePeriod via the tests. I found where the issue is happening and wrote a rough solution for it, but I still need to find the root of it in polkadot-js common, and what is causing this issue via BigInt.

There is also a state tracing update too.

[TarikGul]

I am not able to reproduce the issue via polkadot-js for api.consts.slots.leasePeriod, therefore the issue must be in Sidecar.

[TarikGul]

now.sub(offset).div(leasePeriod) instanceof BN -> false; (To ensure the value returned I updated the following logic)
new BN(now.sub(offset).div(leasePeriod).toNumber()) instanceof BN -> true

This fixes the serializing issue with 6.11.1.

The fix is here. @jsdw