Add redirect to self-hosted runner article (#56877)

Author: jc-clark

content/actions/concepts/runners/self-hosted-runners.md

@@ -7,10 +7,15 @@ redirect_from:
   - /actions/hosting-your-own-runners/about-self-hosted-runners
   - /actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners
   - /actions/concepts/runners/about-self-hosted-runners
+  - /actions/hosting-your-own-runners
 versions:
   fpt: '*'
   ghes: '*'
   ghec: '*'
+contentType: concepts
+topics:
+  - CI
+  - CD
 ---
 
 A self-hosted runner is a system that you deploy and manage to execute jobs from {% data variables.product.prodname_actions %} on {% data variables.product.github %}.

content/actions/how-tos/manage-runners/self-hosted-runners/index.md

@@ -22,6 +22,7 @@ redirect_from:
   - /actions/how-tos/hosting-your-own-runners
   - /actions/how-tos/managing-self-hosted-runners
   - /actions/how-tos/hosting-your-own-runners/managing-self-hosted-runners
+  - /github/automating-your-workflow-with-github-actions/hosting-your-own-runners
 ---
 
 {% data reusables.actions.enterprise-github-hosted-runners %}