swh-pypi: Activate --verbose output for failing upload
Without it, the error message is not clear from the get go and we need to tamper with
build configuration to actually have access to the error message.
See [1] with the --verbose flag versus [2] without it.
[1]
17:56:44 [?25h[34mINFO [0m Response from https://upload.pypi.org/legacy/: 17:56:44 400 The description failed to render for 'text/x-rst'. See 17:56:44 https://pypi.org/help/#description-content-type for more information. 17:56:44 [34mINFO [0m <html> 17:56:44 <head> 17:56:44 <title>400 The description failed to render for 'text/x-rst'. See 17:56:44 https://pypi.org/help/#description-content-type for more 17:56:44 information.</title> 17:56:44 </head> 17:56:44 <body> 17:56:44 <h1>400 The description failed to render for 'text/x-rst'. See 17:56:44 https://pypi.org/help/#description-content-type for more 17:56:44 information.</h1> 17:56:44 The server could not comply with the request since it is either 17:56:44 malformed or otherwise incorrect.<br/><br/> 17:56:44 The description failed to render for 'text/x-rst'. See 17:56:44 https://pypi.org/help/#description-content-type for more information. 17:56:44 17:56:44 17:56:44 </body> 17:56:44 </html>
from https://jenkins.softwareheritage.org/job/DLDCVS/job/pypi-upload/12/console
[2]
17:44:19 [?25h[33mWARNING [0m Error during upload. Retry with the --verbose option for more details.
https://jenkins.softwareheritage.org/job/DLDCVS/job/pypi-upload/11/console