Fixes a mistake in the calculation of studentized bootstrap CIs, impacting

`ci_mean()`

,`ci_mean_diff()`

,`ci_var()`

,`ci_sd()`

, and`ci_proportion()`

when used together with the options `type = "bootstrap"`

**and** `boot_type = "stud"`

. The studentized
bootstrap is the default `boot_type`

for
`ci_mean()`

and `ci_mean_diff()`

.

The mistake happened in calculating the pivotal quantity, not in the statistic itself. Thus, the affected confidence intervals will usually only be slightly off.

“confintr” uses the “boot” package as backend for calculating
bootstrap confidence intervals. To calculate studentized confidence
bootstrap intervals, `boot()`

requires a function that
provides two values: the statistic of interest and its
*variance*. The “confintr” package passed the *standard
deviation* instead of the variance.

This is a maintenance release only,

- getting rid of the CRAN note on LazyData,
- updating to testthat v3, and
- using a more elegant way to generate/update the package.

Added confidence intervals for the odds ratio via stats::fisher.test.

Fixed wrong VignetteIndexEntry.

This is the initial CRAN release.