Upgrade Polkadot-v1.6.0 (!236)

* version 1.0

* add Cargo.lock tweak explanation

* remove artefact file

* format tomls

* fix benchmarks in ci

* harmonize quotes

* fix features propagation

* tweak Cargo.lock

* fix version field missing for srtool

* fix rebase errors

* refactor workspace

* upgrade genesis builder

* upgrade cucumber

* update to benchmarking v2