conf: nicer changelog formatter

[vinpogo]

No description provided.

[Copilot]

Pull request overview

Updates the Changesets configuration to use the GitHub-flavored changelog generator, improving release notes formatting for this monorepo.

Changes:

• Add @changesets/changelog-github as a dev dependency.
• Configure Changesets to use @changesets/changelog-github with the vinpogo/vue-utils repo setting.
• Update pnpm-lock.yaml to include the new dependency and its transitive deps.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 1 comment.

File	Description
package.json	Adds the changelog generator dependency.
.changeset/config.json	Switches changelog config to the GitHub formatter and sets repo.
pnpm-lock.yaml	Locks the newly added package and its dependency tree.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported