Refactor class-based-sharding-algorithm-example with ShardingSphereDriver

[Pace2Car]

For #22469 .

Changes proposed in this pull request:

• Refactor class-based-sharding-algorithm-example with ShardingSphereDriver
• Remove Spring configuration example

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• My code follows the code of conduct of this project.
• I have self-reviewed the commit code.
• I have (or in comment I request) added corresponding labels for the pull request.
• I have passed maven check locally : ./mvnw clean install -B -T1C -Dmaven.javadoc.skip -Dmaven.jacoco.skip -e.
• I have made corresponding changes to the documentation.
• I have added corresponding unit tests for my changes.

[codecov-commenter]

Codecov Report

Merging #22534 (d8b0bfa) into master (7e6d00d) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #22534   +/-   ##
=========================================
  Coverage     50.93%   50.94%           
  Complexity     2515     2515           
=========================================
  Files          4189     4189           
  Lines         58290    58290           
  Branches       9912     9912           
=========================================
+ Hits          29692    29695    +3     
+ Misses        26067    26064    -3     
  Partials       2531     2531           

Impacted Files	Coverage Δ
...handler/distsql/ral/hint/enums/HintSourceType.java	42.85% <0.00%> (+42.85%)	⬆️

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