Updating workflow file to fix build error

Author: nimisha-chaturvedi

.github/workflows/jekyll.yml

@@ -28,6 +28,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Install build dependencies
         run: |
+          sudo apt-get update
           sudo apt-get install -y build-essential pkg-config cmake libssl-dev libruby-dev unzip curl     
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1.221.0