SDKv2 Diff tests for Map

[VenelinMartinov]

This PR finishes the coverage of the SDKv2 bridge for Diff for Map types.

f2a0c1c contains the test recordings

fixes #2787

[VenelinMartinov]

This change is part of the following stack:

• SDKv2 Diff tests for primitive types #2829
  • SDKv2 Diff tests for Map #2830 ◀

_{Change managed by git-spice.}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.50%. Comparing base (9660285) to head (379450d).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2830   +/-   ##
=======================================
  Coverage   67.49%   67.50%           
=======================================
  Files         325      325           
  Lines       41621    41621           
=======================================
+ Hits        28093    28095    +2     
+ Misses      11951    11948    -3     
- Partials     1577     1578    +1     

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[iwahbe]

I have the same response as the previous PR. Can we refactor the test block into it's own function? Duplicate (or worse - almost duplicate) code is very hard to maintain.