v4.14.0 - PDF conversion and Qt6.5

Migration to 4.14

On Ubuntu platforms, it's possible that upgrade to PySide6.5 can make Manim Slides' present command fail.

Here is the known issue, and how to solve it: https://bugreports.qt.io/browse/PYSIDE-2306.

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #195
• chore(deps): upgrading to qt6.5 by @jeertmans in #198
• chore(deps): bump requests from 2.29.0 to 2.31.0 by @dependabot in #190
• feat(convert): add to PDF conversion by @jeertmans in #197

Full Changelog: v4.13.2...v4.14.0