[KYUUBI #6353] Catch exception for closing flink internal session

[wForget]

🔍 Description

Issue References 🔗

This pull request fixes #6353

Describe Your Solution 🔧

Catch exception for closing flink internal session.

Types of changes 🔖

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Test Plan 🧪

Behavior Without This Pull Request ⚰️

Behavior With This Pull Request 🎉

Related Unit Tests

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Checklist 📝

• This patch was not authored or co-authored using Generative Tooling

Be nice. Be informative.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.45%. Comparing base (c73ae71) to head (32fc9af).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #6354   +/-   ##
=========================================
  Coverage     58.45%   58.45%           
  Complexity       24       24           
=========================================
  Files           653      653           
  Lines         39880    39880           
  Branches       5481     5481           
=========================================
+ Hits          23311    23312    +1     
- Misses        14071    14074    +3     
+ Partials       2498     2494    -4     

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