chore: add redirect

Author: andyjessop

.idea/workspace.xml

@@ -1354,6 +1354,7 @@
 /workers/platform/routes/ /workers/configuration/routing/ 301
 /workers/about/tips/debugging/ /workers/observability/ 301
 /workers/testing/debugging-tools/ /workers/observability/dev-tools/ 301
+/workers/testing/local-development/ /workers/local-development/ 301
 /workers/about/tips/signing-requests/ /workers/examples/signing-requests/ 301
 /workers/about/using-cache/ /workers/reference/how-the-cache-works/ 301
 /workers/learning/how-the-cache-works/ /workers/reference/how-the-cache-works/ 301