Prepare release - 2026.6.1

[github-actions]

Approving this PR triggers creation of a new release.

Changes since 2026.6.0:

• Merge pull request Bump serve from 14.2.5 to 14.2.6 #7 from Webperf-se/dependabot/npm_and_yarn/serve-14.2.6%0A* Bump serve from 14.2.5 to 14.2.6%0A* Merge pull request Bump jsdom from 28.1.0 to 29.1.1 #6 from Webperf-se/dependabot/npm_and_yarn/jsdom-29.1.1%0A* Merge branch 'main' into dependabot/npm_and_yarn/jsdom-29.1.1%0A* Merge pull request Bump eslint from 10.0.0 to 10.5.0 #5 from Webperf-se/dependabot/npm_and_yarn/eslint-10.5.0%0A* Merge pull request Bump serve-handler from 6.1.6 to 6.1.7 #4 from Webperf-se/dependabot/npm_and_yarn/serve-handler-6.1.7%0A* Merge pull request Bump @sitespeed.io/plugin from 1.0.0 to 1.0.2 #3 from Webperf-se/dependabot/npm_and_yarn/sitespeed.io/plugin-1.0.2%0A* Merge pull request Bump softprops/action-gh-release from 2 to 3 #2 from Webperf-se/dependabot/github_actions/softprops/action-gh-release-3%0A* Bump jsdom from 28.1.0 to 29.1.1%0A* Bump eslint from 10.0.0 to 10.5.0%0A* Bump serve-handler from 6.1.6 to 6.1.7%0A* Bump @sitespeed.io/plugin from 1.0.0 to 1.0.2%0A* Bump softprops/action-gh-release from 2 to 3