appimage-builder doesn't seem to work anymore.

[nicolasnoble]

Due to AppImage/AppImageKit#1395 and subsequent changes, some of the URLs hardcoded in appimage-builder won't work anymore.

For example:

https://github.com/AppImageCrafters/appimage-builder/blob/main/appimagebuilder/modules/prime/appimage_primer.py#L100-L105

now creates links that are fully 404: https://github.com/AppImage/AppImageKit/releases/download/continuous/runtime-x86_64

[probonopd]

• Please release new version to pypi #375
• #375 Update url for AppImage tool #376