Bump actions/download-artifact from 4 to 7 - #377

Changed pages include:

• benchmarking/index.html - view
• benchmarking/applications/index.html - view
• benchmarking/machines/index.html - view
• benchmarking/applications/feelpp_toolbox_thermoelectric/index.html - view
• benchmarking/machines/gaya/index.html - view
• benchmarking/tutorial/configuration.html - view
• benchmarking/applications/feelpp_toolbox_thermoelectric/hl_31/index.html - view
• benchmarking/json_report/json_schema/report_schema.html - view
• benchmarking/leaves/default-fibonacci-fibonacci-2025_12_05t14_29_01/leaf.html - view
• benchmarking/leaves/default-fibonacci-fibonacci-2025_12_05t14_29_01/report.html - view

There are more changes not included in the list