Re-consideration `poke` for Deposits

[kianenigma]

Many pallets are collecting deposits to prevent spam. Some hard-code values that indicate what that deposit is, some use the newer Consideration API. Some efforts exist to migrate more pallets to the new API: #226

In both cases, the pallets should be capable of adjusting the deposit in a lazy manner. As in, if the "deposit formula" (regardless of how it is expressed) changes, we can re-adjust it.

This should be done lazily, via a permissionless fn poke() transaction that is free in the case of a successful adjustment, and a paid noop otherwise.

Pallets in scope of migration:

• pallet-indices [AHM] Poke deposits: Indices pallet #7587

• pallet-multisig: [AHM] Poke deposits: Multisig pallet #7700

• pallet-proxy: add poke_deposit extrinsic to pallet-proxy #7801

• pallet-society: add poke_deposit extrinsic to pallet-society #7833
  Deposit reserved here: 1

• pallet-bounties: add poke_deposit extrinsic to pallet-bounties #8382
  Deposit reserved here: 1, 2

• pallet-recovery: add poke_deposit extrinsic to pallet-recovery #7882
  Deposit reserved here: 1, 2

[xlc]

Yeah we should have lot more utility pallets to reduce number of non-business logic code in each pallet.
pallet-parameters is one improve that eliminates the needs to implement parameter handling logics. We could have a similar pallet handles all the deposits and poke etc.

[kianenigma]

good name: fn reconisder(origin).

[kianenigma]

I would like to see one example of this created as a learning demo, and it would allow then many ppl to start working on this in parallel.

[ggwpez]

Learning demo can be pallet indices: polkadot-fellows/runtimes#577 (comment)