avoid tostring in SqlConnectionEncryptOptionConverter if we know value is a string

[SimonCropp]

No description provided.

[Copilot]

Pull request overview

This PR makes a minor performance improvement in SqlConnectionEncryptOptionConverter.ConvertFrom by using C# pattern matching (value is string s) to avoid an unnecessary ToString() call on an object already known to be a string.

Changes:

• Replace value is string type check + value.ToString() with value is string s pattern match to directly use the captured string variable.

[mdaigle]

/azp run

[paulmedynski]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 66.34%. Comparing base (569ada7) to head (0c07a1f).
⚠️ Report is 61 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (569ada7) and HEAD (0c07a1f). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (569ada7)	HEAD (0c07a1f)
CI-SqlClient	1	0

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4012      +/-   ##
==========================================
- Coverage   72.36%   66.34%   -6.02%     
==========================================
  Files         287      274      -13     
  Lines       43149    65785   +22636     
==========================================
+ Hits        31223    43646   +12423     
- Misses      11926    22139   +10213     

Flag	Coverage Δ
CI-SqlClient	?
PR-SqlClient-Project	66.34% <100.00%> (?)

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