Make RetryExtension more parallel-safe (#1700)

[Vampire]

Fixes #1700

[Vampire]

• Make RetryExtension more parallel-safe (#1700) #1701 👈
• master

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[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 80.31%. Comparing base (2c7db77) to head (a2d357d).
Report is 40 commits behind head on master.

❗ Current head a2d357d differs from pull request most recent head 2f6e3db. Consider uploading reports for the commit 2f6e3db to get more accurate results

Files	Patch %	Lines
...e/extension/builtin/RetryIterationInterceptor.java	94.73%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1701      +/-   ##
============================================
- Coverage     80.44%   80.31%   -0.14%     
+ Complexity     4337     4305      -32     
============================================
  Files           441      439       -2     
  Lines         13534    13480      -54     
  Branches       1707     1701       -6     
============================================
- Hits          10888    10827      -61     
- Misses         2008     2009       +1     
- Partials        638      644       +6     

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