[1.15] Issue 8394: move closeDataPath outside callbacks

[Lyndon-Li]

Fix issue #8394, don't call closeDataPath in VGDP callbacks, otherwise, the VGDP cleanup will hang

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 58.98%. Comparing base (1d4f147) to head (56cab06).
Report is 2 commits behind head on release-1.15.

Files with missing lines	Patch %	Lines
pkg/controller/pod_volume_backup_controller.go	0.00%	5 Missing ⚠️
pkg/controller/pod_volume_restore_controller.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.15    #8402      +/-   ##
================================================
- Coverage         58.99%   58.98%   -0.02%     
================================================
  Files               367      367              
  Lines             38847    38854       +7     
================================================
  Hits              22918    22918              
- Misses            14467    14474       +7     
  Partials           1462     1462              

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