rgeos package is obsolete and not supported for new versions of R

[cgrandin]

rgeos:: functions are used in the following file. These should be fixed to use something from the sf package.

https://github.com/pbs-assess/gfplot/blob/master/data-raw/survey-boundaries.R

[cgrandin]

rgdal:: is also not supported any longer (in survey-boundaries.R as above)