fix(redirects): correct redirect away from traefik/healthchecks

Author: Cinzya

nginx/redirects.conf

@@ -95,5 +95,5 @@ location = /uninstallation { return 301 /docs/get-started/uninstallation; }
 location = /support { return 301 /docs/get-started/support; }
 
 location = /knowledge-base/common-issues/cloudflare { return 301 /docs/get-started/support; }
-location = /knowledge-base/proxy/traefik/healthcheck { return 301 /docs/knowledge-base/health-checks; }
+location = /knowledge-base/proxy/traefik/healthchecks { return 301 /docs/knowledge-base/health-checks; }
 location = /services/superset { return 301 /docs/services/apache-superset; }