Release v3.12.0 (#140)

* Prepare release v3.12.0

* Update determinate-nixd binaries to v3.12.0

* flake.lock: Update

Flake lock file updates:

• Updated input 'determinate-nixd-aarch64-darwin':
    'https://install.determinate.systems/determinate-nixd/tag/v3.11.3/macOS?narHash=sha256-Nug8jpanW4BbUfzq508ZWtCG24YGvyO8AOeTAyDMOKQ%3D'
  → 'https://install.determinate.systems/determinate-nixd/tag/v3.12.0/macOS?narHash=sha256-TORlljq%2Bwwn8XWLoN0giLY15pNiIAXuU0igpIXjLhMY%3D'
• Updated input 'determinate-nixd-aarch64-linux':
    'https://install.determinate.systems/determinate-nixd/tag/v3.11.3/aarch64-linux?narHash=sha256-kRAuNurPaJBhuOq1SpcCBmDOqCXvGDMKuMAb5vJRqtk%3D'
  → 'https://install.determinate.systems/determinate-nixd/tag/v3.12.0/aarch64-linux?narHash=sha256-1HEvUQcG0mVdEQrEqcLEdB9nHpMNbb39bdNxdvyizqk%3D'
• Updated input 'determinate-nixd-x86_64-linux':
    'https://install.determinate.systems/determinate-nixd/tag/v3.11.3/x86_64-linux?narHash=sha256-7AF8O33I/xlMengDU6tHvmPVvXJZF7XQEdAbjfTPJ6s%3D'
  → 'https://install.determinate.systems/determinate-nixd/tag/v3.12.0/x86_64-linux?narHash=sha256-WrXQbrXVisAdZl/hh49PsErSPHwzks1Vw%2BO3jarVjDo%3D'
• Updated input 'nix':
    'https://api.flakehub.com/f/pinned/DeterminateSystems/nix-src/3.11.3/0199c9f4-3aa1-723c-a5e0-be7fb957ff9f/source.tar.gz?narHash=sha256-1aMQb%2BeSrGDbTrX7PvtpD142CniIvKFxej9hZxBWeMY%3D' (2025-10-09)
  → 'https://api.flakehub.com/f/pinned/DeterminateSystems/nix-src/3.12.0/019a1277-d4c6-7dca-9d55-ee5165fd0bf6/source.tar.gz?narHash=sha256-BvEZ31%2BFQKJz2XH8PTXpJqGZ1eT9bhMQ2wBj2ehBYvM%3D' (2025-10-23)
• Updated input 'nixpkgs':
    'https://api.flakehub.com/f/pinned/DeterminateSystems/nixpkgs-weekly/0.1.871443%2Brev-d7f52a7a640bc54c7bb414cca603835bf8dd4b10/0199bd2b-6c92-7223-94cf-69e43f5561ee/source.tar.gz?narHash=sha256-krgZxGAIIIKFJS%2BUB0l8do3sYUDWJc75M72tepmVMzE%3D' (2025-10-05)
  → 'https://api.flakehub.com/f/pinned/DeterminateSystems/nixpkgs-weekly/0.1.880602%2Brev-cb82756ecc37fa623f8cf3e88854f9bf7f64af93/019a0545-358b-78f4-97fe-88a7820eac2f/source.tar.gz?narHash=sha256-0JDOal5P7xzzAibvD0yTE3ptyvoVOAL0rcELmDdtSKg%3D' (2025-10-20)

---------

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

Author: github-actions[bot]

flake.lock

@@ -6,15 +6,15 @@
     nixpkgs.url = "https://flakehub.com/f/DeterminateSystems/nixpkgs-weekly/0.1";
 
     determinate-nixd-aarch64-linux = {
-      url = "https://install.determinate.systems/determinate-nixd/tag/v3.11.3/aarch64-linux";
+      url = "https://install.determinate.systems/determinate-nixd/tag/v3.12.0/aarch64-linux";
       flake = false;
     };
     determinate-nixd-x86_64-linux = {
-      url = "https://install.determinate.systems/determinate-nixd/tag/v3.11.3/x86_64-linux";
+      url = "https://install.determinate.systems/determinate-nixd/tag/v3.12.0/x86_64-linux";
       flake = false;
     };
     determinate-nixd-aarch64-darwin = {
-      url = "https://install.determinate.systems/determinate-nixd/tag/v3.11.3/macOS";
+      url = "https://install.determinate.systems/determinate-nixd/tag/v3.12.0/macOS";
       flake = false;
     };
     determinate-nixd-x86_64-darwin.follows = "determinate-nixd-aarch64-darwin";