ssd_hc_bcanz errors if single bootstrap sample

[joethorley]

fix for 1 and ensure also possible with 0

library(ssdtools)

fits <- ssd_fit_bcanz(ssddata::ccme_boron)
ssd_hc_bcanz(fits, nboot = 1)
#> Error in `dplyr::group_by()` at ssdtools/R/hcp.R:150:5:
#> ! Must group by variables found in `.data`.
#> ✖ Column `value` is not found.

^{Created on 2025-06-05 with reprex v2.1.1}

[joethorley]

library(ssdtools)

fits <- ssd_fit_bcanz(ssddata::ccme_boron)
ssd_hc_bcanz(fits, nboot = 0)
#> Error in `ssd_hcp_fitdists()` at ssdtools/R/hc.R:156:3:
#> ! `nboot` must be greater than 0, not 0.

^{Created on 2025-06-05 with reprex v2.1.1}