Prepare release 2.14.0.0 (#4897)

* Prepare release 2.14.0.0

- Fix ChangeLog.md date parsing
- bump hie-bios to 0.19.0.0

* update hie-bios in stack.yaml

* update RELEASING.md to mention links to the plugin support table and ghc version support table

Author: wz1000

.github/generate-ci/gen_ci.hs

@@ -67,6 +67,7 @@ data GHC
   | GHC984
   | GHC9103
   | GHC9122
+  | GHC9124
   | GHC9141
   deriving (Show, Eq, Ord, Enum, Bounded)
 
@@ -75,6 +76,7 @@ ghcVersion GHC967  = "9.6.7"
 ghcVersion GHC984  = "9.8.4"
 ghcVersion GHC9103 = "9.10.3"
 ghcVersion GHC9122 = "9.12.2"
+ghcVersion GHC9124 = "9.12.4"
 ghcVersion GHC9141 = "9.14.1"
 
 ghcVersionIdent :: GHC -> String