nix flake update

This update includes a mail-server update that obsoletes our custom patch.

flake.lock

@@ -373,11 +373,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1743550720,
-        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
+        "lastModified": 1749398372,
+        "narHash": "sha256-tYBdgS56eXYaWVW3fsnPQ/nFlgWi/Z2Ymhyu21zVM98=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
+        "rev": "9305fe4e5c2a6fcf5ba6a3ff155720fbe4076569",
         "type": "github"
       },
       "original": {
@@ -625,11 +625,11 @@
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1743296961,
-        "narHash": "sha256-b1EdN3cULCqtorQ4QeWgLMrd5ZGOjLSLemfa00heasc=",
+        "lastModified": 1748740939,
+        "narHash": "sha256-rQaysilft1aVMwF14xIdGS3sj1yHlI6oKQNBRTF40cc=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "e4822aea2a6d1cdd36653c134cacfd64c97ff4fa",
+        "rev": "656a64127e9d791a334452c6b6606d17539476e2",
         "type": "github"
       },
       "original": {
@@ -698,11 +698,11 @@
     },
     "nixpkgs_6": {
       "locked": {
-        "lastModified": 1746141548,
-        "narHash": "sha256-IgBWhX7A2oJmZFIrpRuMnw5RAufVnfvOgHWgIdds+hc=",
+        "lastModified": 1750506804,
+        "narHash": "sha256-VLFNc4egNjovYVxDGyBYTrvVCgDYgENp5bVi9fPTDYc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f02fddb8acef29a8b32f10a335d44828d7825b78",
+        "rev": "4206c4cb56751df534751b058295ea61357bbbaa",
         "type": "github"
       },
       "original": {
@@ -819,11 +819,11 @@
         "nixpkgs": []
       },
       "locked": {
-        "lastModified": 1742649964,
-        "narHash": "sha256-DwOTp7nvfi8mRfuL1escHDXabVXFGT1VlPD1JHrtrco=",
+        "lastModified": 1749636823,
+        "narHash": "sha256-WUaIlOlPLyPgz9be7fqWJA5iG6rHcGRtLERSCfUDne4=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "dcf5072734cb576d2b0c59b2ac44f5050b5eac82",
+        "rev": "623c56286de5a3193aa38891a6991b28f9bab056",
         "type": "github"
       },
       "original": {
@@ -849,11 +849,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1745310711,
-        "narHash": "sha256-ePyTpKEJTgX0gvgNQWd7tQYQ3glIkbqcW778RpHlqgA=",
+        "lastModified": 1750119275,
+        "narHash": "sha256-Rr7Pooz9zQbhdVxux16h7URa6mA80Pb/G07T4lHvh0M=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "5e3e92b16d6fdf9923425a8d4df7496b2434f39c",
+        "rev": "77c423a03b9b2b79709ea2cb63336312e78b72e2",
         "type": "github"
       },
       "original": {