Released version currently failing unit tests

[schuemie]

This seems to be a bit silly, but I think the issue is that, with R 4.4.0, this line needs quotes around the 0, so:

is_installed <- function(pkg, version = "0") {

(There is also a note about a mismatch in documentation in the R Check results you may want to fix)

[katy-sadowski]

Thanks for figuring that out! I was pretty confused why this randomly started showing up. The docs note too must be a new thing in R Check. One of the params in the header isn't capitalized the right way. I'll fix both of these in the next release :)