* Tag version back to dev.

* Fix dev version number.

* Bump requirements

* Format

* Add black / isort configuration to pyproject.toml.

* Fix configuration.

* Reformat using black.

* Ignore reformat for git blame.

* Up max line lenght in pylintrc.

)

Bumps [cryptography](https://github.com/pyca/cryptography) from 41.0.4 to 41.0.6.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@41.0.4...41.0.6)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Fix pytest deprecation warnings.

* Remove extra ".

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.39.4 to 4.43.0.
- [Release notes](https://github.com/fonttools/fonttools/releases)
- [Changelog](https://github.com/fonttools/fonttools/blob/main/NEWS.rst)
- [Commits](fonttools/fonttools@4.39.4...4.43.0)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Use eigendecomposition inplace of la.sqrtm.

* Update envs.

* Upper limit on cirq due to gate equality failure.

* Update dependencies.

* Fix comment typo about sqrt.

* Fix gate equality failure in QuadraticFermionicSimulationGate.

Address #865. Bump cirq version to 1.3.0.

* Remove duplicated env files.

These are now saved under envs/