[EXPORTER] Fixed HTTP session cleanup on shutdown

[owent]

Fixes #2110

Changes

Please provide a brief description of the changes here.

• Record aborted session and call it's FinishOperation.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[codecov]

Codecov Report

Merging #2111 (7805c53) into main (6c7f7c8) will increase coverage by 0.03%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2111      +/-   ##
==========================================
+ Coverage   87.17%   87.19%   +0.03%     
==========================================
  Files         166      166              
  Lines        4784     4784              
==========================================
+ Hits         4170     4171       +1     
+ Misses        614      613       -1     

see 1 file with indirect coverage changes

[marcalff]

LGTM, only minor comments.