fix: allow use of node16 in github actions

Author: giacomocusinato

.github/workflows/build.yml

@@ -275,6 +275,8 @@ jobs:
       - build-type-determination
       - select-targets
     env:
+      # https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/
+      ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
       # Location of artifacts generated by build.
       BUILD_ARTIFACTS_PATH: electron-app/dist/build-artifacts
       # to skip passing signing credentials to electron-builder