SNOW-1463590 Bump BouncyCastle.Cryptography dependency to 2.3.1

[sfc-gh-knozderko]

Description

SNOW-1463590 Bump BouncyCastle.Cryptography dependency to 2.3.1

Checklist

• [x] Code compiles correctly
• [x] Code is formatted according to Coding Conventions
• [x] Created tests which fail without the change (if possible)
• [x] All tests passing (dotnet test)
• [x] Extended the README / documentation, if necessary
• [x] Provide JIRA issue id (if possible) or GitHub issue id in PR name

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.36%. Comparing base (2119080) to head (55e6dc8).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #964 +/- ## ========================================== + Coverage 84.23% 84.36% +0.12% ========================================== Files 89 89 Lines 9707 9707 Branches 921 921 ========================================== + Hits 8177 8189 +12 + Misses 1303 1291 -12 Partials 227 227 ```

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