Upgrade to Polkadot v0.9.42 (!172)

* allow clippy needless_pass_by_ref_mut

* fix clippy

°_°

* fix provider behavior

* fix build errors

* change behavior of going below ED

* fix provider initialization

* add mock epoch change

* add session number test

* add session number test

* WIP fix tests

* fix time-based ud test

* update metadata

* FIX apply all fix from flash branch

* partial fix clippy

other suggestions are not legit

* fix metadata and end2end test

* fix build tests

* fix build and clippy

* remove benchmark of upgrade_accounts

this happens in substrate dependency
I also updated other packages because why not :D
and I removed a useless implementation in mock
but the test do not compile with feature runtime benchmarks anyway

* test_total_issuance_vs_monetary_mass

* proofreading comment

* fix total issuance differently

this actually fixes total issuance at genesis
instead of creating duplicate account data

* fix test scenario

the thing tested here was not the ability to call the function,
but the impossibility of deleting the account

* add comment to explain test

* fix providers and sufficients counts

* fix initial balance

* fix initial TotalIssuance

* fix clippy warnings and optimization

* fix xtask

* update docs

* add DustHandle

* fix pallets config

* fix tests

* fix pallet_balance genesis config

* wip: fix end2end-test

* fix manual and instant sealing

* fix live-tests

* fix offences after rebase

* generate all weights

* add rust toolchain file

* fix benchmarks

Pallet balances benchmarks need https://github.com/duniter/substrate/commit/c36ab4f32454318a47777b24b6533c44121fc10b because pallet duniter-account add another provider.

* fix babe-worker

* fix subxt dependency

* fix ImplicitCallIndex and Weight::from_ref_time deprecation

* fix consensus_babe dependency

* regenerate weights

Regenerate all weights except for pallet-balance failing on one extrinsic

* workaround pallet_duniter_account

Workaround to be able to pass https://github.com/paritytech/substrate/blob/6ef184e33f6ce0f56999ae84b212ea6148c0624d/frame/balances/src/benchmarking.rs#L271 in the benchmark.
ExtraFlags is private and Default is always new_logic not suitable for the benchmark.

* wip fix node errors

* wip fix runtime errors

* fix pallet-duniter-account errors

* fix pallet-balance errors

* fix pallet-identity errors

* fix pallet-duniter-account errors

* upgrade Cargo files

* update docs