Fixes #1081 - Update Dart SDK and Standalone Actions

Author: beanbeanjuice

.github/workflows/release-and-upload-artifacts.yml

@@ -53,11 +53,6 @@ jobs:
       - name: Setup Dart SDK
         uses: ./.github/actions/setup-dart
 
-      - name: Build generated files for sub-packages
-        run: |
-          cd scadnano_state_actions && dart run build_runner build --delete-conflicting-outputs && cd ..
-          cd scadnano_reducers && dart run build_runner build --delete-conflicting-outputs && cd ..
-
       - name: Install ImageMagick
         shell: bash
         run: |