Bump cvxcovariance from 0.1.1 to 0.1.4

Bumps [cvxcovariance](https://github.com/cvxgrp/cov_pred_finance) from 0.1.1 to 0.1.4.
- [Release notes](https://github.com/cvxgrp/cov_pred_finance/releases)
- [Commits](cvxgrp/cov_pred_finance@v0.1.1...v0.1.4)

---
updated-dependencies:
- dependency-name: cvxcovariance
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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