fix(credential-manager): fix offers controller annotation

apps/credential-manager/src/credential-offers/credential-offers.controller.ts

@@ -45,6 +45,23 @@ export class CredentialOffersController {
               ],
             },
           },
+        },
+      },
+    },
+  })
+  @ApiResponse({
+    status: HttpStatus.NOT_FOUND,
+    content: {
+      'application/json': {
+        schema: {},
+        examples: {
+          'Credential offer not found': {
+            value: {
+              statusCode: 404,
+              message: 'Credential offer not found',
+              data: null,
+            },
+          },
           'Tenant not found': {
             value: {
               statusCode: 404,