[KYUUBI #7188] Support starting SparkSQLEngine with an external delegation token file to reduce unnecessary delegation token creation

[Z1Wu]

Why are the changes needed?

fix issue #7188

How was this patch tested?

ut

Was this patch authored or co-authored using generative AI tooling?

no

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 55 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (ea75fa8) to head (f769048).

Files with missing lines	Patch %	Lines
...bi/credentials/YarnRMDelegationTokenProvider.scala	0.00%	24 Missing ⚠️
...n/scala/org/apache/kyuubi/engine/ProcBuilder.scala	0.00%	13 Missing ⚠️
...ache/kyuubi/engine/spark/SparkProcessBuilder.scala	0.00%	11 Missing ⚠️
...in/scala/org/apache/kyuubi/config/KyuubiConf.scala	0.00%	5 Missing ⚠️
...ache/kyuubi/engine/flink/FlinkProcessBuilder.scala	0.00%	2 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #7189   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files         695     696    +1     
  Lines       43433   43472   +39     
  Branches     5887    5889    +2     
======================================
- Misses      43433   43472   +39     

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