deps: remove no longer used changelog-maker devDep (#124)

- I used [my fork of `changelog-maker`](https://github.com/agilgur5/changelog-maker) for some time, but now my process is more involved
  - I manually categorize, summarize, and minimize changes
    - a good chunk of this could be automated by reading the semantic / conventional commit titles, but not entirely (e.g. when a change can fit multiple types or scopes)
  - I use GitHub Releases' "Generate release notes" feature for the first draft / list of commits + PRs
    - unlike `changelog-maker`, GH's feature does not require a `PR-URL: <url>` to exist in the commits to be able to reference the PR
    - I'd like to use a more cross-platform tool that is not reliant on GH, but this is the easiest option right now

- removing this outdated devDep also removes any remaining vulns in the devDeps
  - these didn't affect prod built code and were not exploitable, so were super low priority to fix mainly for less scanner noise

Future Work:
1. better automate the changelog
1. make a GH job to publish to NPM and create the GH release
  - start with manual version bumps for now, but with releases via CI

Author: agilgur5