chore: change to Docker friendly version scheme

Docker build fails if + inside image tag, see

https://codebase.helmholtz.cloud/research-software-directory/RSD-as-a-service/-/pipelines/248253

ERROR: invalid tag "registry.hzdr.de/research-software-directory/rsd-as-a-service/auth:v1.23.0+hifis1": invalid reference format

Docker Documentation

The tag must be valid ASCII and can contain lowercase and uppercase letters, digits, underscores, periods, and hyphens.

Related to #148 (closed)