chore: added deterministic tests

[gilcu3]

Closes #107

• This removes the usage of non-determinism from the code-base, except from the integration tests. I believe using OsRng in these files is preferred, as currently they are the closest we have to usage examples.
• It checks that the results of the main functions in the crate are deterministic, which covers all functions (albeit indirectly). I think this is good enough atm.
• This PR is meant to be merged after the test_utils refactor Simon/test utils folder #217. It should not have any conflict with the snapshots Simon/snapshots #218
• This PR had no choice but slightly breaking the API of test_utils, as some functions were using OsRng internally, and now expect the RNG as a parameter.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 93.37979% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.20%. Comparing base (315a974) to head (aac3704).

Files with missing lines	Patch %	Lines
src/test_utils.rs	37.20%	27 Missing ⚠️
src/ecdsa/robust_ecdsa/test.rs	87.03%	0 Missing and 7 partials ⚠️
src/ecdsa/ot_based_ecdsa/test.rs	93.33%	0 Missing and 3 partials ⚠️
src/crypto/polynomials.rs	98.21%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #225      +/-   ##
==========================================
+ Coverage   88.03%   88.20%   +0.17%     
==========================================
  Files          41       41              
  Lines        9102     9372     +270     
  Branches     9102     9372     +270     
==========================================
+ Hits         8013     8267     +254     
- Misses        642      658      +16     
  Partials      447      447              

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[DSharifi]

Thanks a lot for these changes! :)

[gilcu3]

we might want to address this ugliness (and lack of efficiency, as afaik we send this over the wire) here. The bad part is that this would be a breaking change :| (incompatible with nodes running other version type)