The boost module is a meta-module that is not meant to be directly added as a bazel_dep.
Its purpose is to ensure that all boost sub-modules included in a workspace are the same version.
python3 modules/boost/add_boost_version.py <version>
This script will create a new version of all the boost submodules.
It is only necessary to run this when creating a new version of boost, e.g. 1.89 -> 1.90. You do not need to run this script when just creatinga a new bcr version for a boost module.