Fixes problem with sympy version 1.10.
<!-- Release notes generated using configuration in .github/release.yml at master -->
What's Changed
🛠 Breaking Changes
* Remove 3.5 support, add tests on other Python versions, and break StanMetaRegression for Python 3.7+ by tsalo in https://github.com/neurostuff/PyMARE/pull/66
🐛 Bug Fixes
* Remove use of deprecated `sympy.core.compatibility` module by tsalo in https://github.com/neurostuff/PyMARE/pull/81
Other Changes
* Simplify packaging and update versioneer by tsalo in https://github.com/neurostuff/PyMARE/pull/69
* Run unit tests automatically every Sunday by tsalo in https://github.com/neurostuff/PyMARE/pull/77
* Improve auto-documentation templates. by tsalo in https://github.com/neurostuff/PyMARE/pull/78
* Run updated version of black to fix CI by tsalo in https://github.com/neurostuff/PyMARE/pull/79
**Full Changelog**: https://github.com/neurostuff/PyMARE/compare/0.0.2...0.0.3rc2