RuboCop Performance 1.21.0

New features

• #446: Support Prism as a Ruby parser (experimental). (@koic)

Bug fixes

• #437: Fix a false positive for Performance/ChainArrayAllocation when using select with block argument after select. (@koic)
• #448: Fix a false positive for Performance/RedundantBlockCall when using block.call with block argument. (@koic)

Changes

• #240: Disable Performance/Casecmp cop by default. (@parkerfinch)