update bicep and github actions url

Author: joshuawaddell

articles/azure-resource-manager/bicep/toc.yml

@@ -52,7 +52,7 @@
   - name: Learn Live - Bicep
     href: /events/learntv/learnlive-iac-and-bicep/
   - name: Learn Live - Bicep and GitHub Actions
-    href: /events/learntv/learnlive-automate-azure-deployments-bicep-github-actions/
+    href: /events/learn-events/learnlive-automate-azure-deployments-bicep-github-actions/
   - name: Use deployment stacks
     href: ./tutorial-use-deployment-stacks.md
 - name: Samples - Azure Services