fix: plastic/elastic slip fix for EFEM

[sohailwaziri]

update/store elastic slip only once at the end of the time step

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 39 lines in your changes missing coverage. Please review.

Project coverage is 57.16%. Comparing base (89a6066) to head (fa0d381).
Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
...omponents/constitutive/contact/CoulombFriction.hpp	0.00%	18 Missing ⚠️
...olvers/contact/SolidMechanicsEmbeddedFractures.cpp	0.00%	13 Missing ⚠️
...reComponents/constitutive/contact/FrictionBase.hpp	0.00%	4 Missing ⚠️
...nents/constitutive/contact/FrictionlessContact.hpp	0.00%	2 Missing ⚠️
...ents/constitutive/contact/RateAndStateFriction.hpp	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3348      +/-   ##
===========================================
- Coverage    57.17%   57.16%   -0.02%     
===========================================
  Files         1149     1149              
  Lines        99044    99069      +25     
===========================================
+ Hits         56628    56632       +4     
- Misses       42416    42437      +21     

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