ProxSuite 0.2.11

What's Changed

• Fix dimension check issues by @jcarpent in #125
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #124
• Add is_initialized safeguard to workspace by @fabinsch in #126
• Add simple cpp example by @fabinsch in #127

Full Changelog: v0.2.10...v0.2.11