Update substrate/polkadot/cumulus from v0.9.4 to v0.9.6

[crystalin]

substrate (2021-06-07 -> 2021-06-18)

from: 1d04678e20555e623c974ee1127bc8a45abcf3d6
to: 9c572625f6557dfdb19f47474369a0327d51dfbc
found 55 total commits in https://github.com/substrate/compare/polkadot-v0.9.4...polkadot-v0.9.6

polkadot (2021-06-03 -> 2021-06-21)

from: 2f28561a09aab0613b5f8a68fbabf723d5fc197e
to: 63667acb674776f18d07a97032e56efe4e72bcd6
found 63 total commits in https://github.com/polkadot/compare/release-v0.9.4...release-v0.9.6

cumulus (2021-06-08 -> 2021-06-20)

from: 08b7bcfe21b2ce2a26dcdaa664bf8c016f7c93ae
to: e11ed73ba342fc1aaafaf86979c987ea8d035544
found 14 total commits in https://github.com/cumulus/compare/polkadot-v0.9.4...polkadot-v0.9.6

Important commits by label

E5-breaksapi

(paritytech/substrate#7778) Named reserve

E4-newhostfunctions

(paritytech/substrate#8624) Storage chain: Runtime module

E1-runtimemigration

(paritytech/substrate#9061) Migrate pallet-randomness-collective-flip to pallet attribute macro

C7-high ❗️

(paritytech/substrate#8912) staking/election: prolonged era and emergency mode for governance submission.
(paritytech/polkadot#3198) update pvf heap page limit
(paritytech/polkadot#3201) companion for staking/election: prolonged era and emergency mode for governance submission.
(paritytech/polkadot#3088) Update FallbackStrategy to Nothing

B7-runtimenoteworthy

(paritytech/substrate#7778) Named reserve
(paritytech/substrate#8955) update ss58 type to u16
(paritytech/substrate#8909) contracts: Add new seal_call that offers new features
(paritytech/substrate#9083) Migrate pallet-staking to pallet attribute macro
(paritytech/substrate#9085) Enforce pub calls in pallets
(paritytech/substrate#8912) staking/election: prolonged era and emergency mode for governance submission.
(paritytech/polkadot#3201) companion for staking/election: prolonged era and emergency mode for governance submission.
(paritytech/polkadot#3088) Update FallbackStrategy to Nothing

B5-clientnoteworthy

(paritytech/substrate#8890) rpc-http-threads cli arg

B3-apinoteworthy

(paritytech/substrate#8624) Storage chain: Runtime module
(paritytech/substrate#9043) Delete legacy runtime metadata macros
(paritytech/substrate#8990) Use pallet names to name enum variants
(paritytech/substrate#9026) Stop sending network_state to telemetry
(paritytech/substrate#9085) Enforce pub calls in pallets
(paritytech/substrate#9016) Allow renaming storage item prefixes

B1-releasenotes

(paritytech/polkadot#3198) update pvf heap page limit

N/A

(paritytech/cumulus#472) update substrate & polkadot
(paritytech/cumulus#480) Do not include :code in the storage proof if not required
(paritytech/cumulus#477) Add session weight
(paritytech/cumulus#471) feat(ci): update runtime build workflow
(paritytech/cumulus#485) update substrate/polkadot with construct_runtime changes
(paritytech/cumulus#489) Use polkadot-client instead of polkadot service where possible
(paritytech/cumulus#490) Bring support for calling check_inherents
(paritytech/cumulus#491) Make sure system tests are checking for the correct result
(paritytech/cumulus#494) Adds support for checking the timestamp inherent while validating a block
(paritytech/cumulus#495) Rename pallet-session-benchmarking crate
(paritytech/cumulus#486) Remove All Assets and Uniques from NonTransfer Proxy

[JoshOrndorff]

paritytech/substrate#9061 Now has more info about the storage migration for pallet randomness collective flip.

[JoshOrndorff]

Here are the final dependency versions I've prepared. About to start on moonbeam proper:

Substrate: polkadot-v0.9.6 9c572625f6557dfdb19f47474369a0327d51dfbc
Polkadot: release-v0.9.6 63667acb674776f18d07a97032e56efe4e72bcd6
Cumulus: nimbus-polkadot-v0.9.6 c3e4f715f0ed320c5a036503540ebc03e3dd4048
Frontier: moonbeam-polkadot-v0.9.6 8a7ca9b6b66207a12d3d843aed1ed4cb01a8b948
CrowdloanRewards: main 16c0e661e5b0f001d6a14c5ba242ab4a271a1912