feat(pubsub/v2): fix concurrent map write#13530

Merged

hongalex merged 8 commits intogoogleapis:mainfrom

MASA-JAPAN:fix/pubsub-concurrent-map-write

Jan 15, 2026

Commits on Jan 2, 2026

fix(pubsub): prevent concurrent map write panic in trace propagation
MASA-JAPAN
committed

Commits on Jan 9, 2026

test(pubsub): simplify attributes test to publish single message
MASA-JAPAN
committed
test(pubsub): remove redundant trace context verification
MASA-JAPAN
committed