Fix MCWorkingCopy deprecations

[marschall]

Send #allWorkingCopies instead of #allManagers to MCWorkingCopy if available.

WASeasideVersionStatus now renders with the only deprecated message being WAMetaElement>>charset:.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.

Project coverage is 49.10%. Comparing base (44e5bb7) to head (f353dba).

Files	Patch %	Lines
...ersionStatus.class/instance/sortedWorkingCopies.st	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1430      +/-   ##
==========================================
- Coverage   49.10%   49.10%   -0.01%     
==========================================
  Files        9143     9143              
  Lines       80545    80548       +3     
==========================================
  Hits        39553    39553              
- Misses      40992    40995       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.