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>

plugins/scaffolder-backend/src/scaffolder/actions/TemplateActionRegistry.ts

@@ -93,7 +93,6 @@ export class DefaultTemplateActionRegistry implements TemplateActionRegistry {
       ret.set(action.id, {
         id: action.id,
         description: action.description,
-        examples: [],
         supportsDryRun:
           action.attributes?.readOnly === true &&
           action.attributes?.destructive === false,

plugins/scaffolder-backend/src/service/router.test.ts

@@ -281,7 +281,6 @@ describe('scaffolder router', () => {
 
       expect(response.body).toContainEqual({
         description: 'Test',
-        examples: [],
         id: 'test:my-demo-action',
         schema: {
           input: {