Update SA1013 to allow whitespace before } when it starts a line inside interpolated string

[morsiu]

Closes #3914

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.44%. Comparing base (f5843ae) to head (4e05ed0).
⚠️ Report is 65 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3915   +/-   ##
=======================================
  Coverage   97.44%   97.44%           
=======================================
  Files         926      927    +1     
  Lines      110283   110287    +4     
  Branches     3319     3319           
=======================================
+ Hits       107467   107471    +4     
  Misses       1847     1847           
  Partials      969      969           

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[sharwell]

At this time, I'm not planning to make this change. The spacing enforced here is similar to the spacing for closing parentheses in argument lists (SA1009).