Replace copyright year with dynamic helper (#175)

* Update copyright year to 2025

* Use year.js helper to retrieve the year

Author: eric-schneider

src/partials/footer.hbs

@@ -11,7 +11,7 @@
     </a>
     <p class="!m-0">
       <span>©</span>
-      <span id="copyrightdate">2024</span>
+      <span id="copyrightdate">{{year}}</span>
       <span>DataStax |
         <a
           href="https://www.datastax.com/legal/datastax-website-privacy-policy"