Create new Merge Request does not work on Gitlab.com

Checklist

• I'm using the latest version of the extension (see the latest version in the right column of this page)
  • Extension version: v3.62.0
• I'm using the latest VS Code version (find the latest version here)
  • VS Code version: 1.78.2
• I'm using a supported version of GitLab (see README for the supported version)
  • GitLab version: "happens on gitlab.com"

Summary

The "Create new Merge Request on current project" results in 404. There is a bug in the generated URL.

Steps to reproduce

Use the "Create new Merge Request on current project" on project hosted on gitlab.com

What is the current bug behavior?

Page is opened with 404. https://gitlab.com/projectpath/merge_requests/new?merge_request%5Bsource_branch%5D=feature1

What is the expected correct behavior?

New MR page is opened for the project. https://gitlab.com/projectpath/-/merge_requests/new?merge_request%5Bsource_branch%5D=feature1

Relevant logs and/or screenshots

Possible fixes

There is a missing -/ in the URL after Project path here https://gitlab.com/gitlab-org/gitlab-vscode-extension/-/blob/main/src/commands/openers.ts#L133. Might be related to GitLab.com update to 16.0-pre yesterday?