New version: Convex v0.14.15

[JuliaRegistrator]

• Registering package: Convex
• Repository: https://github.com/jump-dev/Convex.jl
• Created by: @ericphanson
• Version: v0.14.15
• Commit: f1ca69f69ed1ba820f3cd3ca966ebe5655bfec18
• Reviewed by: @ericphanson
• Reference: jump-dev/Convex.jl@f1ca69f#commitcomment-56476194
• Release notes:

• Use sparse factorization for checking for positive semi-definiteness in quadform when possible (#457). Thanks @mtanneau!
• Add assume_psd=false argument to skip checking for positive semi-definiteness in quadform (#456).

[github-actions]

Your new version pull request met all of the guidelines for auto-merging and is scheduled to be merged in the next round.

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