Merge branch 'rubocop/enable-more-cops-for-empty-lines' into 'master'

Enable some Rubocop cops related to new lines

## What does this MR do?

This MR enabled two additional Rubocop cops:

Keeps track of empty lines around block bodies.  
`Style/EmptyLinesAroundBlockBody`

Keeps track of empty lines around method bodies.  
` Style/EmptyLinesAroundMethodBody`

See merge request !5637