terminus self:plugin:install does not exit with an error if the composer command failed

[davereid]

Platform

( ) MacOS (x) Linux via GitHub Action runner ( ) WSL2

Installed Via

( ) Homebrew ( ) Apt Package (x) Manually via Composer

PHP Version

( ) 7.4x ( ) 8.0 (x) 8.1

Terminus Version

3.2.1

Command Executed

Run terminus self:plugin:install terminus-build-tools-plugin
  terminus self:plugin:install terminus-build-tools-plugin
  shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}
  env:
    PANTHEON_MACHINE_TOKEN: ***
    DDEV_GITHUB_TOKEN: ***
    PANTHEON_ENV: dev
    COMPOSER_PROCESS_TIMEOUT: 0
    COMPOSER_NO_INTERACTION: 1
    COMPOSER_NO_AUDIT: 1
    COMPOSER_AUTH: {"github-oauth": {"github.com": "***"}}
Error: ]  Failed executing "composer search -d /home/runner/.terminus/terminus-dependencies-[2](https://github.com/principaldrupal-emu/wsk-storefront/actions/runs/6225114922/job/16894827209#step:15:2)7a446d99[3](https://github.com/principaldrupal-emu/wsk-storefront/actions/runs/6225114922/job/16894827209#step:15:3) -N -t terminus-plugin --format json pantheon-systems/terminus-build-tools-plugin": 
In CurlDownloader.php line 372:
                                                                               
  curl error [5](https://github.com/principaldrupal-emu/wsk-storefront/actions/runs/6225114922/job/16894827209#step:15:5)[6](https://github.com/principaldrupal-emu/wsk-storefront/actions/runs/6225114922/job/16894827209#step:15:6) while downloading https://packagist.org/packages/list.json: O  
  penSSL SSL_read: error:0A000[12](https://github.com/principaldrupal-emu/wsk-storefront/actions/runs/6225114922/job/16894827209#step:15:12)6:SSL routines::unexpected eof while reading,  
   errno 0                                                                     
                                                                               

search [-N|--only-name] [-O|--only-vendor] [-t|--type TYPE] [-f|--format FORMAT] [--] <tokens>...

 
Error: ]  pantheon-systems/terminus-build-tools-plugin is not a valid Packagist project.

Expected behavior

For the command to have exited with a non-zero exit code in this case.

Actual behavior

The GitHub workflow kept running because a zero exit code (success) was issued when running this command.