upcoming sf breaks opensensemapR

[edzer]

an improvement to sf revealed a coding error in opensensmapR, and breaks the vignette building. If you run osem-intro.Rmd up to line 147, and then do

> st_as_sf(pm25) |> names()
# [1] NA    NA    NA    NA    NA    NA    "NA."

you see that the column names vanished. This now breaks because the geometry column name is set to geometry and passed on to sf_sf() where it needs to be found (but isn't). The error comes from
https://github.com/sensebox/opensensmapR/blob/master/R/external_generics.R#L27
where mostattributes<- fails to set names when columns are deselected:

pm25[-c(3,4)] |> head()
# NULL

[edzer]

Let me know if you need help fixing this one.