Avoid concurrent builds of the deploy workflow

Author: gsmet

.github/workflows/deploy.yml

@@ -7,17 +7,22 @@ on:
   push:
     branches:
       - develop
+
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: true
+      
 jobs:
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7 # can change this to 2.7 or whatever version you prefer
+          ruby-version: 3.2.2
 
       - name: Build Jekyll site
         uses: limjh16/jekyll-action-ts@v2