cpac 1.8.5 release candidate 1

What's Changed since v0.5.1

• 👽️ Upgraded to handle changes in C-PAC, Python and Mac OS by @shnizzedy in #36
• ✨ Added tsconcat command to cpac by @shnizzedy in #43
• ✨ Added command to call ba-timeseries-gradients from wrapper by @shnizzedy in #42
• 📝 Added note about cpac versioning by @shnizzedy in #44
• 📦️ Changes versioning scheme to match supported C-PAC version
• 📦️ Replaces setup.cfg with pyproject.toml
• 📦️ Replaces setuptools with poetry
• 🎨 Adds pre-commit hooks for linting and formatting
• ⬆️ Require Python ≥ 3.8

Full Changelog: v0.5.1...v1.8.5rc1