SDKv2 Diff tests for secret list type

[VenelinMartinov]

This adds Diff tests for the SDKv2 bridge for secrets in list types.

Part of #2791

[VenelinMartinov]

This change is part of the following stack:

• SDKv2 Diff tests for secret primitive types #2834
  • SDKv2 Diff tests for secret list type #2835 ◀
    • SDKv2 Diff tests for secret set type #2836
      • Refactor Set and List Diff tests to use generic utilities #2837
        • SDKv2 Diff tests for Defaults in sets and lists #2838
          • SDKv2 Diff tests for MaxItemsOne sets #2839

_{Change managed by git-spice.}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.49%. Comparing base (cece87c) to head (50397fc).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2835      +/-   ##
==========================================
+ Coverage   67.48%   67.49%   +0.01%     
==========================================
  Files         325      325              
  Lines       41633    41633              
==========================================
+ Hits        28094    28099       +5     
+ Misses      11959    11954       -5     
  Partials     1580     1580              

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[pulumi-bot]

This PR has been shipped in release v3.102.0.