Enhance Github release notes#279

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ezhang6811 wants to merge 9 commits intoaws-observability:mainfrom

ezhang6811:zhaez/update-release-notes

Commits on Sep 13, 2025

Reapply "Merge SDK and Lambda Releases (#253)" (#260)
ezhang6811
committed

Commits on Sep 17, 2025

Merge branch 'main' into merge-releases
thpierce
authored

Commits on Sep 29, 2025

Merge branch 'main' into merge-releases
ezhang6811
committed