Version 0.11.2

This release fixes a long standing issue if a check modifies the cached fixtures. Checks weren't supposed to do this, but validate-pyproject did this. Now a spare deep copy of the fixtures are kept, and restored with a warning if a check modifies them. There's also a new CLI flag to show all the installed plugin's versions.

Features:

• Add a --versions option to view all plugin versions by @henryiii in #242

Fixes:

• Warn and correct if a check modifies a cached fixture by @henryiii in #243

Full Changelog: v0.11.1...v0.11.2