Update ruby to v4

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/pr-build.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up Ruby 3.2
         uses: ruby/setup-ruby@ae195bbe749a7cef685ac729197124a48305c1cb # v1.276.0
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.0
 
       - name: Install and Build 🔧
         run: |

.github/workflows/site-build.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up Ruby 3.2
         uses: ruby/setup-ruby@ae195bbe749a7cef685ac729197124a48305c1cb # v1.276.0
         with:
-          ruby-version: 3.4.8
+          ruby-version: 4.0.0
 
       - name: Install and Build 🔧
         run: |