Upgrade version to 2.2

[Angie-Zhang]

Signed-off-by: Angie Zhang langelzh@amazon.com

Issue #, if available: #431

Description of changes:

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[downsrob]

* What went wrong:
Could not determine the dependencies of task ':integTest'.
> Can't get https://ci.opensearch.org/ci/dbc/distribution-build-opensearch/2.2.0/latest/linux/x64/tar/builds/opensearch/plugins/opensearch-notifications-2.2.0.0.zip to /home/runner/work/index-management/index-management/src/test/resources/notifications/opensearch-notifications-2.2.0.0.zip

Blocked by notifications not being on 2.2 yet

[downsrob]

Closing this in favor of the merged PR #446
Note that PR is on 2.x, let's just bump main to 3.0 instead

[gbbafna]

Hi @downsrob , bumping the version to 3.0 is failing due to notifications not being on 3.0 yet . To unblock my PR which needs latest OpenSearch changes on main , I plan to backport same changes to main . Sounds good ?