devshell: Add terraform 1.12

flake.lock

@@ -234,6 +234,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-2205": {
+      "locked": {
+        "lastModified": 1685573264,
+        "narHash": "sha256-Zffu01pONhs/pqH07cjlF10NnMDLok8ix5Uk4rhOnZQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "380be19fbd2d9079f677978361792cb25e8a3635",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-22.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-lib": {
       "locked": {
         "dir": "lib",
@@ -263,6 +279,7 @@
         "nix-darwin": "nix-darwin",
         "nixos-flake": "nixos-flake",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-2205": "nixpkgs-2205",
         "unstable": "unstable"
       }
     },

flake.nix

@@ -5,6 +5,8 @@
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
     mastodon-fork.url = "github:teutat3s/nixpkgs/mastodon-4.2.1";
 
+    nixpkgs-2205.url = "github:nixos/nixpkgs/nixos-22.05";
+
     nix-darwin.url = "github:lnl7/nix-darwin/master";
     nix-darwin.inputs.nixpkgs.follows = "nixpkgs";
 
@@ -63,6 +65,7 @@
             shfmt
             treefmt
             nixos-generators
+            inputs.nixpkgs-2205.legacyPackages.${system}.terraform
           ];
         };
       };