feat(update-nix-dependencies): Use flake's nix-blockchain-development instead of default

To get the new Nix outPaths for all zkVMs, we used to execute a `nix
run` command, which found the paths from the nix-blockchain-development
repo, default branch on latest commit.

Since that could differ from what repo our flake actually uses, we're
updating the logic.

1 files changed, 5 insertions, 2 deletions

diff --git a/flake.nix b/flake.nix
index b815571..ab5fadd 100644
--- a/flake.nix
+++ b/flake.nix
@@ -74,8 +74,11 @@
         }) { } guests;
     in {
       packages.${system} = hostPackages // guestPackages // {
-        rust-format-all = callPackage ./rust-format-all.nix { };
-        update-nix-dependencies = callPackage ./update-nix-dependencies.nix { };
+        rust-format-all = callPackage ./rust-format-all.nix {
+        };
+        update-nix-dependencies = callPackage ./update-nix-dependencies.nix {
+          zkvms = builtins.map (name: mcl-blockchain.packages.${system}.${name}) zkvms;
+        };
       };
 
       formatter.${system} = pkgs.nixfmt;