Pin pip version to 24.2 to avoid absolute paths while resolving deps

This pops up in sciline scipp/sciline#193 and #242 (comment)

Author: MridulS

template/tox.ini.jinja

@@ -64,6 +64,8 @@ description = Update dependencies by running pip-compile-multi
 deps =
   pip-compile-multi
   tomli
+  # Avoid https://github.com/jazzband/pip-tools/issues/2131
+  pip==24.2
 skip_install = true
 changedir = requirements
 commands = python ./make_base.py{% if nightly_deps %} --nightly {{nightly_deps}}{% endif %}