Release v2.28.1 (#48)

* Prepare release v2.28.1

* Update Nix release to 2.28.1

* flake.lock: Update

Flake lock file updates:

• Updated input 'nix':
    'https://api.flakehub.com/f/pinned/NixOS/nix/2.27.1/0195c8c5-1964-7a31-b025-ebf9bfeef991/source.tar.gz?narHash=sha256-rBPulEBpn4IiqkPsetuh7BRzT2iGCzZYnogTAsbrvhU%3D' (2025-03-24)
  → 'https://api.flakehub.com/f/pinned/NixOS/nix/2.28.1/01960f78-0dae-7f47-8634-b8166a3aac66/source.tar.gz?narHash=sha256-R%2BHAPvD%2BAjiyRHZP/elkvka33G499EKT8ntyF/EPPRI%3D' (2025-04-07)
• Updated input 'nixpkgs':
    'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2411.716288%2Brev-d02d88f8de5b882ccdde0465d8fa2db3aa1169f7/0195d574-d7fe-7866-9aa3-2e5ea0618cf6/source.tar.gz?narHash=sha256-lWc%2B79eZRyvHp/SqMhHTMzZVhpxkRvthsP1Qx6UCq0E%3D' (2025-03-25)
  → 'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2411.716906%2Brev-f9ebe33a928b5d529c895202263a5ce46bdf12f7/01962516-8e8a-7dcf-a403-62dfeef93d76/source.tar.gz?narHash=sha256-QZnNHM823am8apCqKSPdtnzPGTy2ZB4zIXOVoBp5%2BW0%3D' (2025-04-10)

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

flake.lock

@@ -1,7 +1,7 @@
 {
   description = "Determinate Nix";
   inputs = {
-    nix.url = "https://flakehub.com/f/NixOS/nix/=2.27.1";
+    nix.url = "https://flakehub.com/f/NixOS/nix/=2.28.1";
     nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/*";
   };