doc: Update the roadmap

Author: tomasol

ROADMAP.md

@@ -61,6 +61,7 @@ Use wasi:logging/logging@0.1.0-draft
 * Optional stdout,stderr persistence / forwarding
 * Smart dependency routing from a caller via an interface import to one of many components that export it.
 * Smart retries - Retry budget, disabling retries when the activity is failing certain % of requests
+* Allow setting retry config during execution creation using an extension function
 * Configurable jitter added to retries
 * Workflow memory snapshots for faster replay
 * Ability to hotfix a set of workflows, with an approval system when non determinism is detected - forking the execution log