update release notes and changelogs

[dannimad]

pnpm flub generate releaseNotes -g client -t minor --outFile RELEASE_NOTES/2.61.0.md
pnpm flub generate changelog -g client

[Copilot]

Pull Request Overview

This PR updates release notes and changelogs for version 2.61.0 across all packages in the FluidFramework client release group. The updates include dependency updates for most packages and specific minor changes for packages with new features or deprecations.

• Automated generation of version 2.61.0 changelog entries for all packages
• Addition of specific minor changes for telemetry-utils, runtime-definitions, datastore, and test-runtime-utils packages
• Removal of changeset files that have been processed into the changelogs

Reviewed Changes

Copilot reviewed 162 out of 162 changed files in this pull request and generated no comments.

File	Description
Multiple CHANGELOG.md files	Added 2.61.0 version entries with either "Dependency updates only" or specific minor changes
.changeset/*.md files	Removed processed changeset files for telemetry-utils error handling, datastore deprecation, and minVersionForCollab features

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluid-framework-docs-site@0.0.0 ci:check-links /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test "npm run serve -- --no-open" 3000 check-links

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"


> fluid-framework-docs-site@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-docs-site@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

Crawling...

Stats:
  235713 links
    1720 destination URLs
    1953 URLs ignored
       0 warnings
       0 errors