Release 3.7.0

[kelson42]

• Check dependences requirements
• Secure the CI is green on git main
• Kiwix-Build is OK
• Update the Changelog
• Update version
• Close current milestone and create new one incrementaly (a priori a minor version)
• Create a tag on git
• Secure new source/sbinaries are published on https://download.openzim.org/release/zim-tools/
• Update the Github release with the Changelog
• Create new empty entry in Changelog (placeholder for future entries)
• Publicize these new versions
• Request an update of the zimcheck in the Zimfarm