flake.nix: add devshell with deploy-rs

flake.lock

@@ -164,6 +164,26 @@
       }
     },
     "devshell_2": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741473158,
+        "narHash": "sha256-kWNaq6wQUbUMlPgw8Y+9/9wP0F8SHkjy24/mN3UAppg=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "7c9e793ebe66bcba8292989a68c0419b737a22a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "devshell_3": {
       "inputs": {
         "nixpkgs": [
           "nix-topology",
@@ -859,7 +879,7 @@
     },
     "nix-topology": {
       "inputs": {
-        "devshell": "devshell_2",
+        "devshell": "devshell_3",
         "flake-utils": "flake-utils",
         "nixpkgs": [
           "nixpkgs"
@@ -1112,6 +1132,7 @@
         "agenix": "agenix",
         "agenix-rekey": "agenix-rekey",
         "deploy-rs": "deploy-rs",
+        "devshell": "devshell_2",
         "disko": "disko",
         "firefox-gnome-theme": "firefox-gnome-theme",
         "flake-parts": "flake-parts_2",