build: replace justfile with run

.github/workflows/ci.yml

@@ -15,15 +15,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
-      - uses: extractions/setup-just@95b912dc5d3ed106a72907f2f9b91e76d60bdb76 # 1.5.0
 
       - uses: cachix/install-nix-action@6ed004b9ccb68dbc28e7c85bee15fa93dbd214ac # v22
         with:
           nix_path: nixpkgs=channel:nixos-unstable
 
       - run: |
-          nix develop --command yarn
-          nix develop --command yarn build
+          ./run ci:build
 
       - uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
         with:
@@ -37,8 +35,6 @@ jobs:
     steps:
       - uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4
 
-      - uses: extractions/setup-just@95b912dc5d3ed106a72907f2f9b91e76d60bdb76 # 1.5.0
-
       - name: Add the deployment SSH key
         uses: shimataro/ssh-key-action@3c9b0fc6f2d223b8450b02a0445f526350fc73e0 # 2.3.1
         with:
@@ -52,6 +48,6 @@ jobs:
           path: dist
 
       - run: |
-          just deploy ${{ github.sha }}
+          ./run ci:deploy ${{ github.sha }}
 
 # vim: sw=2 ts=2