rubocop test does not report failures in jenkins

[scpeters]

Environment

• OS Version: 24.04
• Source or binary build? source build of gz-tools2 (2d2cf69)

Description

• Expected behavior: if rubocop test fails, it should be reported by jenkins
• Actual behavior: it currently fails on 24.04 but is not registered as a failure by Jenkins

Steps to reproduce

1. Observe https://build.osrfoundation.org/view/gz-ionic/job/gz_tools-ci-gz-tools2-noble-amd64/73/ is passing
2. Look for rubocop test result in console log and observe that it failed

Output

test 2
    Start 2: rubocop

2: Test command: /usr/bin/rubocop "-E" "-c" "/home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/gz-tools/src/../tools/.rubocop.yml" "/home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/gz-tools/src"
2: Working Directory: /home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/build/src
2: Test timeout computed to be: 1500
2: Inspecting 1 file
2: C
2: 
2: Offenses:
2: 
2: /home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/gz-tools/src/gz.in:59:20: C: [Correctable] Style/StringConcatenation: Prefer string interpolation to string concatenation.
2:   next if Dir.glob(conf_directory + '/*.yaml').empty?
2:                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
2: /home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/gz-tools/src/gz.in:64:12: C: [Correctable] Style/StringConcatenation: Prefer string interpolation to string concatenation.
2:   Dir.glob(conf_directory + '/*.yaml') do |conf_file|
2:            ^^^^^^^^^^^^^^^^^^^^^^^^^^
2: /home/jenkins/workspace/gz_tools-ci-gz-tools2-noble-amd64/gz-tools/src/gz.in:197:12: C: [Correctable] Style/StringConcatenation: Prefer string interpolation to string concatenation.
2:   usage += '  ' + cmd + ':' + padding + versions.first[1]['description'] + "\n"
2:            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2: 
2: 1 file inspected, 3 offenses detected, 3 offenses autocorrectable
2/2 Test #2: rubocop ..........................***Failed    1.05 sec