* gnu/packages/python-compression.scm (python-brotlicffi)[source]: Add
snippet to delete bundled libbrotli.
[arguments]: Add phase to configure using shared libbrotli.
[inputs]: Add brotli.

* gnu/packages/python-compression.scm (python-py7zr): Update to 0.20.2.
[build-system]: Use pyproject-build-system.
[propagated-inputs]: Add python-brotli, python-brotlicffi,
python-importlib-metadata, python-inflate64, python-psutil, python-pybcj,
python-pycryptodomex, and python-pyppmd; remove python-bcj-cffi,
python-ppmd-cffi, python-pycryptodome, and python-zstandard.

* gnu/packages/python-compression.scm (python-pybcj): New variable.

* gnu/packages/python-compression.scm (python-inflate64): New variable.

* gnu/packages/python-compression.scm (python-multivolumefile): Update to
0.2.3.
[build-system]: Use pyproject-build-system.
[native-inputs]: Remove python-pep517 and python-setuptools; add
python-hypothesis.

* gnu/packages/python-compression.scm (python-brotlicffi): New variable.

* gnu/packages/python-compression.scm (python-pyppmd): New variable.

* gnu/packages/python-compression.scm (python-zstandard): Update to 0.19.0.
[propagated-inputs]: Add python-cffi.

* gnu/packages/python-compression.scm (python-pyzstd): Update to 0.15.3.

* gnu/packages/python-compression.scm (python-ppmd-cffi): Update to 0.5.0.
[native-inputs]: Remove python-setuptools and python-pep517; add
python-hypothesis.