The "+" is not compatible and leads to problems with semver version parsers.
Unsure if breaking?
Reviewed-on: https://kolaente.dev/vikunja/vikunja/pulls/2378
Co-authored-by: Dominik Pschenitschni <mail@celement.de>
Co-committed-by: Dominik Pschenitschni <mail@celement.de>