Omit outputting empty "then" entries to the command log

Relates to #1214 [1].

This is unfortunately highly dependant on Cypress' implementation
details and cumbersome (at best) to test. Hopefully this doesn't have
any adverse side effects.

[1] #1214

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+## Unreleased
+
+- Omit outputting empty "then" entries to the command log, relates to [#1214](https://github.com/badeball/cypress-cucumber-preprocessor/discussions/1214).
+
 ## v20.1.0
 
 - Include skipped (not omitted) tests in reports, fixes [#1041](https://github.com/badeball/cypress-cucumber-preprocessor/issues/1041).

lib/helpers/cypress.ts

@@ -43,7 +43,7 @@ export function runStepWithLogGroup(options: {
   argument?: DataTable | string;
   text?: string;
 }) {
-  Cypress.log({
+  const log = Cypress.log({
     name: options.keyword,
     message: options.text == null ? "" : `**${options.text}**`,
     groupStart: true,
@@ -71,7 +71,7 @@ export function runStepWithLogGroup(options: {
   }
 
   return ensureChain(ret).then((result) => {
-    Cypress.log({ groupEnd: true, emitOnly: true } as object);
+    (log as any).endGroup();
     return result;
   });
 }