Document TestPyPI trusted publisher configuration requirement

[Copilot]

The publish-testpypi workflow fails with invalid-publisher because Trusted Publishing is not configured on TestPyPI.

Analysis

No code changes required. The workflow configuration is correct:

• environment: testpypi ✓
• permissions: id-token: write ✓
• pypa/gh-action-pypi-publish@release/v1 ✓

Required Action

Configure a trusted publisher at https://test.pypi.org/manage/account/publishing/:

Field	Value
PyPI Project Name	lansweeper-helpdesk
Owner	ds-brandao
Repository name	Lansweeper.Helpdesk-Python
Workflow name	publish-testpypi.yml
Environment name	testpypi

For production PyPI (publish.yml), configure similarly at https://pypi.org/manage/account/publishing/ with environment name pypi.

Original prompt

Reference: https://github.com/ds-brandao/Lansweeper.Helpdesk-Python/actions/runs/22708405027/job/65840336763#step:3:1

Fix this. I want to be able to deploy

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