Add trailing slash to Galaxy API redirect link

- without this trailing slash, user will currently see a 404

roles/galaxy-api/templates/redirect-page.configmap.html.j2

@@ -67,11 +67,11 @@ data:
         <p class="doc-note">
             The API endpoints for this platform service will temporarily remain available at the URL for this service.
             Please use the Ansible Automation Platform API endpoints corresponding to this component in the future.
-            These can be found at <a href="{{ public_base_url }}/{{ pulp_combined_settings.galaxy_api_path_prefix }}" target="_blank">{{ public_base_url }}/{{ pulp_combined_settings.galaxy_api_path_prefix }}</a>.
+            These can be found at <a href="{{ public_base_url }}/{{ pulp_combined_settings.galaxy_api_path_prefix }}/" target="_blank">{{ public_base_url }}/{{ pulp_combined_settings.galaxy_api_path_prefix }}/</a>.
         </p>
 
         <!-- Include any additional scripts if needed -->
         <script src="static/rest_framework/js/jquery-3.5.1.min.js"></script>
         <script src="static/rest_framework/js/bootstrap.min.js"></script>
     </body>
-    </html>
+    </html>