fix: move @metamask/utils from devDeps to deps

[legobeat]

• Was added as devDependency while importing in runtime in #158.

https://github.com/MetaMask/utils/actions/runs/6601251324/job/17932102826?pr=152

node:internal/modules/cjs/loader:1051
  throw err;
  ^

Error: Cannot find module '@metamask/utils'
Require stack:
- /home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/changelog.js
- /home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/init.js
- /home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/cli.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1048:15)
    at Module._load (node:internal/modules/cjs/loader:901:27)
    at Module.require (node:internal/modules/cjs/loader:1115:19)
    at require (node:internal/modules/helpers:130:18)
    at Object.<anonymous> (/home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/changelog.js:18:17)
    at Module._compile (node:internal/modules/cjs/loader:1241:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1295:10)
    at Module.load (node:internal/modules/cjs/loader:1091:32)
    at Module._load (node:internal/modules/cjs/loader:938:12)
    at Module.require (node:internal/modules/cjs/loader:1115:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/changelog.js',
    '/home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/init.js',
    '/home/runner/work/utils/utils/node_modules/@metamask/auto-changelog/dist/cli.js'
  ]
}

[mcmire]

@legobeat ~Hmm... this doesn't seem right. This isn't a development dependency; it legitimately is used in this package. So wouldn't this break normal usage of this package on the command line? For instance, if you were to just call this via yarn dlx @metamask/auto-changelog or npx @metamask/auto-changelog, it wouldn't work.~

Wow, I misread this PR title. Apologies. This is definitely right, not sure how we missed this before.