fix: MaxRetryInterval was not propagated

[javier-aliaga]

Description

maxRetryInterval from WorkflowTaskRetryPolicy was silently dropped when converting to the durabletask RetryPolicy. This caused the runtime to use its default ~5-minute cap regardless of what the user configured.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[salaboy]

LGTM

[siri-varma]

LGTM

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.51%. Comparing base (129c29d) to head (a0c5807).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1685      +/-   ##
============================================
+ Coverage     79.48%   79.51%   +0.03%     
- Complexity     2191     2194       +3     
============================================
  Files           237      237              
  Lines          6575     6577       +2     
  Branches        729      730       +1     
============================================
+ Hits           5226     5230       +4     
+ Misses          994      992       -2     
  Partials        355      355              

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