Hello and happy to help you with it!

1. Did you update the branch name?

`dev` => `main` (L22 on very first snippet)

2. Does the tag version number you provided to GitLab API exist on the repo?

You need to push the tag first, see the `postversion` NPM command (3rd snippet)

Finally, try to push commit message as described in the article with description and trailer separated with line breaks.