sql: fix data race in TestIntegrationCosmosDB

[mmatczuk]

Skip TestIntegrationCosmosDB when running with the race detector.

The gocosmos driver depends on gjrc v0.2.2 which has a data race in
GjrcResponse.Body: it uses broken double-checked locking where the
outer nil check reads a shared field without the mutex while a
background goroutine (spawned eagerly by gjrc.buildResponse) writes
it under the mutex. This is a bug in the third-party library that
affects every gocosmos REST call and cannot be worked around.

gjrc v0.2.2 is the latest available version as of this commit.

Fixes CON-409

[claude]

License header year: Both race_test.go and norace_test.go use Copyright 2024, but the current year is 2026. Per project Go patterns: "Use the current year."

Update the copyright year to 2026 in both new files.

[claude]

Commits
LGTM

Review
Clean change that skips the CosmosDB integration test under the race detector due to a known third-party data race in gjrc v0.2.2. The build-tag constant pair is a standard Go pattern and the implementation is correct.

1. License header year: Both new files (race_test.go and norace_test.go) use Copyright 2024 instead of the current year 2026. Per project Go patterns: "Use the current year."