Improve Performance/RedundantSortBlock cop

[ydakuka]

https://docs.rubocop.org/rubocop-performance/cops_performance.html#performanceredundantsortblock

Implemented

# bad
array.sort { |x, y| x <=> y }
# good
array.sort

Not implemented

# bad
array.sort! { |x, y| x <=> y }
# good
array.sort!

# bad
array.min { |x, y| x <=> y }
# good
array.min

# bad
array.min { |x, y| y <=> x }
# good
array.max

# bad
array.max { |x, y| x <=> y }
# good
array.max

# bad
array.max { |x, y| y <=> x }
# good
array.min

# bad
array.minmax { |x, y| x <=> y }
# good
array.minmax