- Fix dependencies

- add build-1.patch to fix compatibility with python-build-1.0+
- update to 1.6.1
* Add support for repositories that do not provide a supported
hash algorithm
* Add full support for duplicate dependencies with overlapping
markers
* Improve performance of poetry lock for certain edge cases
* Improve performance of poetry install
* poetry check validates that specified readme files do exist
* Add a downgrading note when updating to an older version
* Add support for vox in the xonsh shell
* Add support for pre-commit hooks for projects where the
pyproject.toml file is located in a subfolder
* Add support for the git+http:// scheme
* Drop support for Python 3.7
* Move poetry lock --check to poetry check --lock and
deprecate the former
* Change future warning that PyPI will only be disabled
automatically if there are no primary sources
* Update the minimum required version of requests
* Fix an issue where build-system.requires were not respected
for projects with build scripts
* Fix an issue where the encoding was not handled correctly
when calling a subprocess
* Fix an issue where poetry show --top-level did not show top
level dependencies with extras
* Fix an issue where poetry init handled projects with src
layout incorrectly