Merge branch 'sieve-fix' into 'master'

dovecot: support new `sieve` API in nixpkgs

See merge request simple-nixos-mailserver/nixos-mailserver!319

flake.lock

@@ -47,11 +47,43 @@
         "type": "indirect"
       }
     },
+    "nixpkgs-23_05": {
+      "locked": {
+        "lastModified": 1704290814,
+        "narHash": "sha256-LWvKHp7kGxk/GEtlrGYV68qIvPHkU9iToomNFGagixU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-23.05",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs-23_11": {
+      "locked": {
+        "lastModified": 1709884566,
+        "narHash": "sha256-NSYJg2sfdO/XS3L8XN/59Zhzn0dqWm7XtVnKI2mHq3w=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2be119add7b37dc535da2dd4cba68e2cf8d1517e",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-23.11",
+        "type": "indirect"
+      }
+    },
     "root": {
       "inputs": {
         "blobs": "blobs",
         "flake-compat": "flake-compat",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-23_05": "nixpkgs-23_05",
+        "nixpkgs-23_11": "nixpkgs-23_11",
         "utils": "utils"
       }
     },

flake.nix

@@ -8,13 +8,15 @@
     };
     utils.url = "github:numtide/flake-utils";
     nixpkgs.url = "flake:nixpkgs/nixos-unstable";
+    nixpkgs-23_05.url = "flake:nixpkgs/nixos-23.05";
+    nixpkgs-23_11.url = "flake:nixpkgs/nixos-23.11";
     blobs = {
       url = "gitlab:simple-nixos-mailserver/blobs";
       flake = false;
     };
   };
 
-  outputs = { self, utils, blobs, nixpkgs, ... }: let
+  outputs = { self, utils, blobs, nixpkgs, nixpkgs-23_05, nixpkgs-23_11, ... }: let
     lib = nixpkgs.lib;
     system = "x86_64-linux";
     pkgs = nixpkgs.legacyPackages.${system};
@@ -23,6 +25,14 @@
         name = "unstable";
         pkgs = nixpkgs.legacyPackages.${system};
       }
+      {
+        name = "23.05";
+        pkgs = nixpkgs-23_05.legacyPackages.${system};
+      }
+      {
+        name = "23.11";
+        pkgs = nixpkgs-23_11.legacyPackages.${system};
+      }
     ];
     testNames = [
       "internal"