Bump BWC version from 2.8 to 2.9

[khushbr]

Is your feature request related to a problem? Please provide an existing Issue # , or describe. https://github.com/opensearch-project/performance-analyzer/issues/488

Describe the solution you are proposing Bump BWC version from 2.8 to 2.9

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [x] Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov[bot]]

Codecov Report

Merging #497 (97bb452) into main (7908ae3) will increase coverage by 0.07%. The diff coverage is n/a.

:exclamation: Current head 97bb452 differs from pull request most recent head ccd9e5b. Consider uploading reports for the commit ccd9e5b to get more accurate results

@@             Coverage Diff              @@
##               main     #497      +/-   ##
============================================
+ Coverage     73.85%   73.93%   +0.07%     
- Complexity      381      382       +1     
============================================
  Files            45       45              
  Lines          2693     2693              
  Branches        172      172              
============================================
+ Hits           1989     1991       +2     
+ Misses          596      594       -2     
  Partials        108      108              

see 1 file with indirect coverage changes