2.3.9 stable backports (#10532)

* version: bump stable

* fix Sha3/keccak256 hash calculation for binaries (#10509)

https://github.com/paritytech/parity-ethereum/issues/10495

* verbose flag for cpp tests (#10524)

* Initial support sccache for windows build (#10520)

* Initial support sccache for win build

* show sccache stats

* cache paths for shared runners

* sccache status is in the script.

* removed windows test for now

* ethcore: remove eth social and easthub chain configs (#10531)

* Fix max_gas (#10537)

Fix max_gas

* build android with cache, win fixes (#10546)

* build android with cache!

* windows fixes

* windows fixes 2

* windows fixes 3

* windows fixes 4

* windows should have sccache variables in env variables

* Update light client harcoded headers (#10547)

* kovan #10643457

* ropsten #5296129

* foundation #7460865

* classic #7747585

* indentation

* morden #3973121

util/version/Cargo.toml

@@ -3,7 +3,7 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for Parity Ethereum version string (via env CARGO_PKG_VERSION)
-version = "2.3.8"
+version = "2.3.9"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"