Lift dependencies to the workspace (Part 1) (#2070)

Changes (partial https://github.com/paritytech/polkadot-sdk/issues/994):
- Set log to `0.4.20` everywhere
- Lift `log` to the workspace

Starting with a simpler one after seeing
https://github.com/paritytech/polkadot-sdk/pull/2065 from @jsdw.
This sets the `default-features` to `false` in the root and then
overwrites that in each create to its original value. This is necessary
since otherwise the `default` features are additive and its impossible
to disable them in the crate again once they are enabled in the
workspace.

I am using a tool to do this, so its mostly a test to see that it works
as expected.

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

substrate/bin/node/runtime/Cargo.toml

@@ -25,7 +25,7 @@ codec = { package = "parity-scale-codec", version = "3.6.1", default-features =
 ] }
 scale-info = { version = "2.10.0", default-features = false, features = ["derive", "serde"] }
 static_assertions = "1.1.0"
-log = { version = "0.4.17", default-features = false }
+log = { workspace = true }
 serde_json = { version = "1.0.111", default-features = false, features = ["alloc", "arbitrary_precision"] }
 
 # pallet-asset-conversion: turn on "num-traits" feature