fix(api): correct the vertex id in the edge-existence api

[msgui]

Purpose of the PR

The id obtained through GraphAPI.formatVertexId may contain unnecessary double quotation marks. It is recommended to use checkAndParseVertexId for a secure conversion.

👉：apache/incubator-hugegraph-toolchain#544 (comment)

Main Changes

Verifying these changes

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

• [] Nope
• Dependencies (add/update license info)
• Modify configurations
• The public API
• Other affects (typed here)

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (47aa8be) 66.31% compared to head (d7ffa14) 61.38%.

Files	Patch %	Lines
...ph/traversal/algorithm/EdgeExistenceTraverser.java	0.00%	3 Missing ⚠️
...che/hugegraph/api/traversers/EdgeExistenceAPI.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2380      +/-   ##
============================================
- Coverage     66.31%   61.38%   -4.94%     
+ Complexity      830      488     -342     
============================================
  Files           510      510              
  Lines         42187    42186       -1     
  Branches       5840     5840              
============================================
- Hits          27977    25896    -2081     
- Misses        11445    13661    +2216     
+ Partials       2765     2629     -136     

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