Use corepack_22 to fix CI key error?

Author: airhorns

.github/actions/setup-test-env/action.yml

@@ -36,4 +36,4 @@ runs:
       run: npm config set @gadget-client:registry https://registry.gadget.dev/npm
     - name: Install dependencies with pnpm
       shell: bash
-      run: pnpm install
+      run: pnpm install

flake.nix

@@ -22,7 +22,7 @@
             rec {
               bash = pkgs.bash;
               nodejs = pkgs.nodejs_22;
-              corepack = pkgs.corepack;
+              corepack = pkgs.corepack_22;
             };
 
           devShell = pkgs.mkShell {