fix(study-factory): ignore non-existent files in archived studies during build

[laurent-laporte-pro]

Description

Fixes issue: Unexpected server error: "There is no item named 'settings/generaldata.ini' in the archive"

Changes Made

• Ignore non-existent files in the ZIP archive, such as renewable cluster configuration files.
• Avoid parsing renewable cluster configuration, when the study version is less than 8.1.
• Optimize reading configuration from within an INI file to eliminate the need for decompressing into a temporary directory. Decompression now occurs in memory, resulting in faster processing.

How to Test

1. Attempt to open an archived study with a version less than to 8.1.
2. Verify that the application no longer displays the "Unexpected server error" error.
3. Confirm that the study opens successfully without any issues.

Screenshots

Checklist

• I have tested these changes locally.
• I have updated existing documentation (docstring and comments).
• I have ensured that my code follows the project's coding standards.