Update PingVin: Fix problem with update und switch to new method of getting files.

[michelroegl-brunner]

✍️ Description

Fix problem with update und switch to new method of getting files.

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• Related Issue: PingVin Share update broken #1815
• Related Discussion/Guide Update Pingvin after 28.01.2025 #1822

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✅ Prerequisites

The following steps must be completed for the pull request to be considered:

• Self-review performed (I have reviewed my code to ensure it follows established patterns and conventions.)
• Testing performed (I have thoroughly tested my changes and verified expected functionality.)

🛠️ Type of Change

Please check the relevant options:

• Bug fix (non-breaking change that resolves an issue)
• [] New feature (non-breaking change that adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change unexpectedly)
• [] New script (a fully functional and thoroughly tested script or set of scripts)

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📋 Additional Information (optional)

[MickLesk]

short guide needed for users. breaking change.
if you check on RELEASE_.txt, and there is no file, it breaks the update?

[michelroegl-brunner]

Yep, added the guide on how to mitigate this.

[MickLesk]

Guide: #1822