[AUTO] Increment version to 2.12.0-SNAPSHOT

[opensearch-trigger-bot[bot]]

• Incremented version to 2.12.0-SNAPSHOT.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 68.62%. Comparing base (f2d6b0b) to head (40b1587).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 2.12 #632 +/- ## ============================================ - Coverage 68.70% 68.62% -0.09% Complexity 365 365 ============================================ Files 43 43 Lines 2473 2473 Branches 172 172 ============================================ - Hits 1699 1697 -2 - Misses 671 672 +1 - Partials 103 104 +1 ```

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