Bump flake inputs and tools (#859)

 - Update flake inputs
 - Update HLS to 2.5
- Use upstream scriv as nedbat/scriv#91 was
merged and released in 1.4.0 (latest is 1.5.1 already).

docs/website/contents/for-developers/ReleaseProcess.md

@@ -231,12 +231,12 @@ A - ...
 # Installing `scriv`
 
 To manage the workflow described above, we will use the `scriv` tool slightly
-modified to support cabal files.. If you use `nix` then you will find `scriv` in
+modified to support cabal files. If you use `nix` then you will find `scriv` in
 the Nix shell. Otherwise, the way to install it from source is:
 
-1. Clone [our fork of scriv](https://github.com/IntersectMBO/scriv/) and `cd`
-   into it.
-2. Run `pip install -e $(pwd)`
+```
+pip install scriv
+```
 
 If you encounter an error mentioning:
 `pkg_resources.extern.packaging.version.InvalidVersion: Invalid version: ...` we
@@ -248,7 +248,7 @@ installation complains with the error `error: externally-managed-environment`,
 pass in the flag `--break-system-packages`:
 
 ```
-pip install --break-system-packages -e $(pwd)
+pip install --break-system-packages scriv
 ```
 
 # Adding a changelog fragment

nix/shell.nix

@@ -22,7 +22,7 @@ hsPkgs.shellFor {
   # This is the place for tools that are required to be built with the same GHC
   # version as used in hsPkgs.
   tools = lib.mapAttrs (_: t: t // { index-state = pkgs.tool-index-state; }) {
-    haskell-language-server = { version = "2.4.0.0"; };
+    haskell-language-server = { version = "2.5.0.0"; };
   };
 
   shellHook = ''

nix/tools.nix

@@ -2,7 +2,7 @@ inputs: final: prev:
 
 let
   inherit (final) lib;
-  tool-index-state = "2023-11-16T00:00:00Z";
+  tool-index-state = "2024-01-01T00:00:00Z";
   tool = name: version: other:
     final.haskell-nix.tool final.hsPkgs.args.compiler-nix-name name ({
       version = version;
@@ -52,16 +52,6 @@ in
 
   cabal-fmt = tool "cabal-fmt" "0.1.9" { };
 
-  scriv = prev.scriv.overrideAttrs (_: {
-    version = "1.2.0-custom-iog";
-    src = final.fetchFromGitHub {
-      owner = "input-output-hk";
-      repo = "scriv";
-      rev = "567a1aa3f6df77d1a531290f10a261ec6a49c75a";
-      hash = "sha256-wpWDuZ3c8JJKVWPw9PHgcpneRWYjd/0z4oAIirPa0/E=";
-    };
-  });
-
   haskellBuildUtils = prev.haskellBuildUtils.override {
     inherit (final.hsPkgs.args) compiler-nix-name;
     index-state = tool-index-state;