Use Subscription Manager from jsonrpc-pubsub (#6208)

* Bump jsonrpc pubsub, core, http, and ws

Right now these are the packages which _need_ to be updated
so I can just the latest `jsonrpc-pubsub` code. Once a release
it cut upstream the rest of the dependencies should be updated
as well.

* Use jsonrpc-pubsub's SubscriptionManager

This places sc-rpc-api::Subscriptions

* Bump jsonrpc-core outside of sc-rpc-*

* Update client/rpc tests

Right now one of the `author` tests is failing, I
need to think a bit about how best to fix it.

* Remove Subscriptions manager

There's no need for this implementation since we're
using the one from `jsonrpc-pubsub` now

* Fix author RPC test

This test used to check for a numerial subscription ID,
whereas now it uses a string based ID which is the default
provided by `jsonrpc-pubsub`'s subscription manager.

* Remove unused NumericIdProvider

* Add missing bracket

Removed one too many with that last one, lol

* Bump `jsonrpc` to v14.2

There's an exception though. `jsonrpc-derive` cannot be bumped
past v14.0.5 just yet since it has a dependency on `quote` pinned
to v1.0.1. This means that at the moment it won't build on Substrate
since it's using v1.0.3.

* Track `jsonrpc-derive` master branch

* Bump `quote` version to v1.0.6

* Bump `jsonrpc-derive` to v14.2.1

This includes support for `quote` v1.0.6

substrate/bin/utils/subkey/Cargo.toml

@@ -31,7 +31,7 @@ rpassword = "4.0.1"
 itertools = "0.8.2"
 derive_more = { version = "0.99.2" }
 sc-rpc = { version = "2.0.0-rc2", path = "../../../client/rpc" }
-jsonrpc-core-client = { version = "14.0.3", features = ["http"] }
+jsonrpc-core-client = { version = "14.2", features = ["http"] }
 hyper = "0.12.35"
 libp2p = { version = "0.19.1", default-features = false }
 serde_json = "1.0"