Remove Role as Maintainer

[SeBassTian23]

As per the DESCRIPTION file, I'm still considered the maintainer of the R-package that has been submitted to CRAN as well (see https://cran.r-project.org/web/packages/PhotosynQ/index.html).

If the Authors in the DESCRIPTION could be updated to something like in the code below and an updated package submit to CRAN, it would be greatly appreciated, as I can't initiate the changes myself.

Authors@R: c(
    person("Jane", "Smith", email = "jane.smith@example.com", role = "cre"),
    person("Sebastian", "Kuhlgert", email = "sebastian.kuhlgert@gmail.com", role = "aut")
)