[Bug] Fix Switch logic task doesn't check the branch exist

[ruanwenjun]

Purpose of the pull request

close #15756

Brief change log

Verify this pull request

This pull request is code cleanup without any test coverage.

(or)

This pull request is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

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If your pull request contain incompatible change, you should also add it to docs/docs/en/guide/upgrede/incompatible.md

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 42 lines in your changes are missing coverage. Please review.

Project coverage is 39.08%. Comparing base (2e16907) to head (f089692).

❗ Current head f089692 differs from pull request most recent head 0976f12. Consider uploading reports for the commit 0976f12 to get more accurate results

Files	Patch %	Lines
...master/runner/task/switchtask/SwitchLogicTask.java	0.00%	42 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##                dev   #15755   +/-   ##
=========================================
  Coverage     39.07%   39.08%           
- Complexity     4850     4852    +2     
=========================================
  Files          1316     1316           
  Lines         44965    44962    -3     
  Branches       4809     4808    -1     
=========================================
+ Hits          17572    17574    +2     
+ Misses        25492    25489    -3     
+ Partials       1901     1899    -2     

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[sonarcloud]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 60%)

See analysis details on SonarCloud

[caishunfeng]

LGTM