Public DB Tools 0.2.1

[CI] Fix last version retrieval for tools release
[CI] Remove folder hierarchy from release binary
Give more meaningful message if unable to find asset
    Bubble up errors otherwise
Retain execution permission for release binaries
    By zipping them
Fix Test Workflow
Bump tools version to 0.2.0
Separate DB and Tools releases
Remove ZLIB dependency
Download JSON database if not present