Do not error when bootstrapping CIs if sample is too sparse

[etiennebacher]

Close #540

library(datawizard)

set.seed(123456)
describe_distribution(mtcars[mtcars$cyl=="6",], wt, centrality = "map", ci = 0.95)
#> Warning: When bootstrapping CIs, sample was too sparse to find TD. Returning NA
#>   for CIs.
#> Variable |  MAP |  IQR | 95% CI |        Range | Skewness | Kurtosis | n | n_Missing
#> ------------------------------------------------------------------------------------
#> wt       | 3.43 | 0.67 |        | [2.62, 3.46] |    -0.36 |    -2.08 | 7 |         0

^{Created on 2024-10-07 with reprex v2.1.1}

[IndrajeetPatil]

Awesome. Thanks!