feat: Add option to use Oxfmt for formatting changelog

[Mrtenz]

This adds a new optional --formatter option to the CLI, which can be set to either "oxfmt" or "prettier" (default). This allows the generated changelog to be formatted with Oxfmt.

---

Note

Medium Risk
Changes the release workflow to thread a new formatter parameter through changelog generation/execution paths and upgrades @metamask/auto-changelog, which could alter changelog output or release-branch automation behavior.

Overview
Adds a new --formatter CLI option (default prettier) to control how changelogs are formatted, supporting both prettier and oxfmt across the CLI and interactive UI workflows.

Threads this formatter selection through determineInitialParameters, followMonorepoWorkflow/UI execution, and executeReleasePlan/package update helpers, replacing the previous hardcoded Prettier formatting with a getFormatter switch.

Updates dependencies to @metamask/auto-changelog@^6.1.0, adds optional peer deps for oxfmt/prettier, and adjusts tests (including mocking dynamic imports) plus a new Oxfmt-specific changelog expectation.

^{Reviewed by Cursor Bugbot for commit 8624d54. Bugbot is set up for automated code reviews on this repo. Configure here.}

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​metamask/​auto-changelog@​4.0.0 ⏵ 6.1.0	-2		+1	+8

View full report

[socket-security]

All alerts resolved. Learn more about Socket for GitHub.

This PR previously contained dependency changes with security issues that have been resolved, removed, or ignored.

Ignoring alerts on:

• @octokit/request@8.4.1
• @metamask/auto-changelog@6.1.0

View full report

[Mrtenz]

@SocketSecurity ignore npm/@metamask/auto-changelog@6.1.0
@SocketSecurity ignore npm/@octokit/request@8.4.1

Network access used to talk to the GitHub API.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, have a team admin enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 381fa8b. Configure here.}

[Mrtenz]

@metamaskbot publish-preview

[mcmire]

LGTM!