permit build workflow to run on PRs

Author: willcl-ark

.github/workflows/build.yml

@@ -6,14 +6,11 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 concurrency:
-  group: github-pages
+  group: github-pages-build
   cancel-in-progress: false
 jobs:
   build-jekyll:
     runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/publish.yml

@@ -2,11 +2,11 @@
 name: Publish to GitHub Pages
 on:
   push:
-    branches: [main, master]
+    branches: [master]
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 concurrency:
-  group: github-pages
+  group: github-pages-publish
   cancel-in-progress: false
 # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
 permissions: