updates

Author: sergical

src/middleware.ts

@@ -1651,10 +1651,22 @@ const USER_DOCS_REDIRECTS: Redirect[] = [
     from: '/platforms/apple/metrics/',
     to: '/platforms/apple/tracing/instrumentation/performance-metrics/',
   },
+  {
+    from: '/platforms/unity/metrics/',
+    to: '/concepts/key-terms/tracing/span-metrics/',
+  },
   {
     from: '/platforms/php/metrics/',
     to: '/concepts/key-terms/tracing/span-metrics/',
   },
+  {
+    from: '/platforms/php/guides/laravel/metrics/',
+    to: '/concepts/key-terms/tracing/span-metrics/',
+  },
+  {
+    from: '/platforms/php/guides/symfony/metrics/',
+    to: '/concepts/key-terms/tracing/span-metrics/',
+  },
   // END redirecting deprecated generic metrics docs to concepts
   {
     from: '/learn/cli/configuration/',