🚨 Fix warnings

[rmm5t]

What does it do?

• Fix warnings for ambiguous - operator usage
• Fix minitest deprecation warning
• Remove duplicate definitions of config properties

What else do you need to know?

business_time was generating syntax and deprecation warnings.

.../business_time/test/test_business_days.rb:240: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_days.rb:256: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_days.rb:257: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/lib/business_time/config.rb:121: warning: method redefined; discarding old end_of_workday
.../business_time/lib/business_time/config.rb:71: warning: previous definition of end_of_workday was here
.../business_time/lib/business_time/config.rb:130: warning: method redefined; discarding old beginning_of_workday
.../business_time/lib/business_time/config.rb:71: warning: previous definition of beginning_of_workday was here
.../business_time/lib/business_time/config.rb:139: warning: method redefined; discarding old work_week=
.../business_time/lib/business_time/config.rb:77: warning: previous definition of work_week= was here
.../business_time/test/test_business_hours.rb:223: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:289: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:292: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:301: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:311: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:312: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours.rb:314: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours_eastern.rb:119: warning: ambiguous first argument; put parentheses or a space even after `-' operator
.../business_time/test/test_business_hours_utc.rb:117: warning: ambiguous first argument; put parentheses or a space even after `-' operator

[boomer196]

Thank you! 👍 . Hoping this gets merged.