Replace expired key for signing the MSI Installer

[JohnLBergqvist]

• Each commit message has a non-empty body, explaining why the change was made.
• Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.36%. Comparing base (582aa69) to head (7460da8).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8364      +/-   ##
===========================================
+ Coverage    78.28%   78.36%   +0.08%     
===========================================
  Files         1726     1726              
  Lines       188577   188382     -195     
  Branches     18443    18240     -203     
===========================================
  Hits        147629   147629              
+ Misses       40948    40753     -195     

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