Merge pull request #8732 from opf/fix/parallel_tests_on_travis

use binstubbed parallel_test

Gemfile

@@ -236,7 +236,8 @@ group :test do
   gem 'json_spec', '~> 1.1.4'
   gem 'shoulda-matchers', '~> 4.4', require: nil
 
-  gem 'parallel_tests', '~> 3.1'
+  # For unknown reasons, parallel_tests 3.3 fails on travis.
+  gem 'parallel_tests', '~> 3.1', '< 3.3.0'
 end
 
 group :ldap do

Gemfile.lock

@@ -654,7 +654,7 @@ GEM
     openproject-token (2.1.3)
       activemodel
     parallel (1.19.2)
-    parallel_tests (3.3.0)
+    parallel_tests (3.2.0)
       parallel
     parser (2.7.1.4)
       ast (~> 2.4.1)
@@ -1063,7 +1063,7 @@ DEPENDENCIES
   openproject-webhooks!
   openproject-xls_export!
   overviews!
-  parallel_tests (~> 3.1)
+  parallel_tests (~> 3.1, < 3.3.0)
   passenger (~> 6.0.1)
   pg (~> 1.2.2)
   plaintext (~> 0.3.2)