Reverted Noble runners to Jammy (#158)

Our document build is not working under Noble because of Ruby version
incompatibilities. Reverted runners to Jammy.

Author: mrgarris0n

.github/workflows/jekyll-gh-pages.yml

@@ -29,7 +29,7 @@ concurrency:
 jobs:
   # Build job
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -105,7 +105,7 @@ jobs:
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs: build
     steps:
       - name: Deploy to GitHub Pages