Skip shard routing tests on OpenSearch < 2.2.0 with security

OpenSearch < 2.2.0 with the security plugin throws
java.io.OptionalDataException on shard-routed requests due to
non-thread-safe HashSet/HashMap in User serialization. Fixed in 2.2.0
by opensearch-project/security#1970 (50a94b47).

Widen the existing 2.1.0-only skip to cover all versions below 2.2.0.

Signed-off-by: Sean Chittenden <sean.chittenden@crowdstrike.com>

Author: sean-

CHANGELOG.md

@@ -198,6 +198,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Skip shard routing integration tests on OpenSearch < 2.2.0 with security plugin due to server-side `OptionalDataException` from non-thread-safe User serialization (opensearch-project/security#1970)
 - Fix flaky `TestDefaultHealthCheck_RetryAfterMaxRetry`: replace wall-clock `time.Sleep` + `atomic.Int64` synchronization with context cancellation (`ctx.Done()`), and widen `maxRetryClusterHealth` to 5s so the baseline HTTP round-trip cannot race past the retry interval ([#787](https://github.com/opensearch-project/opensearch-go/pull/787))
 - Skip opensearchtransport integration tests on OpenSearch < 2.2.0 with security plugin due to server-side `OptionalDataException` from non-thread-safe User serialization (opensearch-project/security#1970)
+- Skip shard routing integration tests on OpenSearch < 2.2.0 with security plugin due to server-side `OptionalDataException` from non-thread-safe User serialization (opensearch-project/security#1970)
 - Fix connection lifecycle bug in multiServerPool.OnFailure where connections were scheduled for resurrection before being moved from ready to dead list, causing potential race conditions
 - Fix flaky connection integration test by replacing arbitrary sleep times with proper server readiness polling
 - Fix cluster readiness checks in integration tests to handle HTTPS cold start delays (increase timeout to 15s)