yesod-csp-0.2.7.0: CHANGELOG.md

# Changelog

## Version 0.2.7.0

+ Add support for remaining CSP Level 2 directives (see https://github.com/pSub/yesod-csp/pull/5)

## Version 0.2.6.0

+ Fixes compilation failure with ghc-9.0.2 or newer (see https://github.com/bobjflong/yesod-csp/issues/8)