SNOW-1629635 fix connection pool allocation

[sfc-gh-mhofman]

Description

Fixed connection pool manager allocation problem Removal of exceptions related to optional connection string parameters

Checklist

• [x] Code compiles correctly
• [x] Code is formatted according to Coding Conventions
• [x] Created tests which fail without the change (if possible)
• [x] All tests passing (dotnet test)
• [x] Extended the README / documentation, if necessary
• [x] Provide JIRA issue id (if possible) or GitHub issue id in PR name

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 93.29897% with 13 lines in your changes missing coverage. Please review.

Project coverage is 85.68%. Comparing base (aef4d3a) to head (02aedf2).

Files with missing lines	Patch %	Lines
Snowflake.Data/Core/SFBlockingChunkDownloaderV3.cs	95.83%	3 Missing and 3 partials :warning:
Snowflake.Data/Core/Tools/Diagnostics.cs	87.50%	3 Missing and 2 partials :warning:
Snowflake.Data/Client/SnowflakeDbConnectionPool.cs	75.00%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1024 +/- ## ========================================== - Coverage 85.75% 85.68% -0.08% ========================================== Files 117 118 +1 Lines 11352 11400 +48 Branches 1133 1137 +4 ========================================== + Hits 9735 9768 +33 - Misses 1337 1350 +13 - Partials 280 282 +2 ```

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