[deps]: Update bitwarden-crypto digest to 21432b5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
bitwarden-crypto	dependencies	digest	1461b3b -> 21432b5

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[bitwarden-bot]

Internal tracking:

• ID: PM-27395
• Link: https://bitwarden.atlassian.net/browse/PM-27395

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.00%. Comparing base (0956494) to head (b7ba207).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6496   +/-   ##
=======================================
  Coverage   52.00%   52.00%           
=======================================
  Files        1906     1906           
  Lines       84295    84295           
  Branches     7517     7517           
=======================================
  Hits        43839    43839           
  Misses      38751    38751           
  Partials     1705     1705           

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