flake.lock: Update

Flake lock file updates:

• Removed input 'libgit2'
• Updated input 'nix':
    'github:NixOS/nix/d652513e4519ed4eb48c92f8670e5a71c7793fc3?narHash=sha256-mIpJgIwPS4o4xYhN1B%2B/fHESEXoxpu6nVoZTzZ0MfTg%3D' (2025-02-12)
  → 'github:NixOS/nix/970942f45836172fda410a638853382952189eb9?narHash=sha256-jGFuyYKJjJZsBRoi7ZcaVKt1OYxusz/ld1HA7VD2w/0%3D' (2025-02-12)
• Removed input 'nix/libgit2'
• Updated input 'nix-eval-jobs':
    'github:nix-community/nix-eval-jobs/6d4fd5a93d7bc953ffa4dcd6d53ad7056a71eff7?narHash=sha256-1dZLPw%2BnlFQzzswfyTxW%2B8VF1AJ4ZvoYvLTjlHiz1SA%3D' (2025-02-13)
  → 'github:Ericson2314/nix-eval-jobs/5e27c2724a4b07862e7ff1a198aa2ed68dea3e2c?narHash=sha256-7xgSdKnQW11eWd59MnpUNS%2BgwgtOJH2ShzLwByev3rg%3D' (2025-02-14)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/dbebdd67a6006bb145d98c8debf9140ac7e651d0?narHash=sha256-Xc9lEtentPCEtxc/F1e6jIZsd4MPDYv4Kugl9WtXlz0%3D' (2024-09-18)
  → 'github:NixOS/nixpkgs/97a719c9f0a07923c957cf51b20b329f9fb9d43f?narHash=sha256-1o1qR0KYozYGRrnqytSpAhVBYLNBHX%2BLv6I39zGRzKM%3D' (2025-02-13)

flake.nix

@@ -1,17 +1,11 @@
 {
   description = "A Nix-based continuous build system";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05-small";
-
-  inputs.libgit2 = {
-    url = "github:libgit2/libgit2/v1.8.1";
-    flake = false;
-  };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11-small";
 
   inputs.nix = {
-    url = "github:NixOS/nix/2.25-maintenance";
+    url = "github:NixOS/nix/2.26-maintenance";
     inputs.nixpkgs.follows = "nixpkgs";
-    inputs.libgit2.follows = "libgit2";
 
     # hide nix dev tooling from our lock file
     inputs.flake-parts.follows = "";
@@ -22,7 +16,7 @@
   };
 
   inputs.nix-eval-jobs = {
-    url = "github:nix-community/nix-eval-jobs";
+    url = "github:Ericson2314/nix-eval-jobs/nix-2.26";
     # We want to control the deps precisely
     flake = false;
   };