feat(actionsRegistry): Adding support for examples (#33551)

* feat(backend-plugin-api): add typed examples to actions registry

Signed-off-by: benjdlambert <ben@blam.sh>

* fix: address review feedback for actions registry examples

Signed-off-by: benjdlambert <ben@blam.sh>

* fix: remove empty examples from scaffolder action bridge

Signed-off-by: benjdlambert <ben@blam.sh>

* chore: add changeset for scaffolder-backend

Signed-off-by: benjdlambert <ben@blam.sh>

* fix: update router test to match removed examples field

Signed-off-by: benjdlambert <ben@blam.sh>

---------

Signed-off-by: benjdlambert <ben@blam.sh>

packages/backend-test-utils/src/alpha/services/MockActionsRegistry.ts

@@ -91,6 +91,7 @@ export class MockActionsRegistry
           idempotent: action.attributes?.idempotent ?? false,
           readOnly: action.attributes?.readOnly ?? false,
         },
+        examples: action.examples,
         schema: {
           input: action.schema?.input
             ? zodToJsonSchema(action.schema.input(z))