v3 release version strings and track stable (#11680)

Co-authored-by: Denis Granha <denis@gnosis.io>

Cargo.lock

@@ -3113,7 +3113,7 @@ checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
 
 [[package]]
 name = "openethereum"
-version = "3.0.0-alpha.1"
+version = "3.0.0"
 dependencies = [
  "ansi_term",
  "atty",
@@ -3562,7 +3562,7 @@ dependencies = [
 
 [[package]]
 name = "parity-version"
-version = "3.0.0-alpha.1"
+version = "3.0.0"
 dependencies = [
  "parity-bytes",
  "rlp",

Cargo.toml

@@ -2,7 +2,7 @@
 description = "OpenEthereum"
 name = "openethereum"
 # NOTE Make sure to update util/version/Cargo.toml as well
-version = "3.0.0-alpha.1"
+version = "3.0.0"
 license = "GPL-3.0"
 authors = [
 	"OpenEthereum developers",

util/version/Cargo.toml

@@ -3,14 +3,14 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for the OpenEthereum version string (via env CARGO_PKG_VERSION)
-version = "3.0.0-alpha.1"
+version = "3.0.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"
 
 [package.metadata]
 # This versions track. Should be changed to `stable` when on respective branches.
 # Used by auto-updater and for the OpenEthereum version string.
-track = "nightly"
+track = "stable"
 
 # Network specific settings, used ONLY by auto-updater.
 # Latest supported fork blocks.