package scripts should use upstream, not origin, to set repository.url from git

[rotu]

The repository URLs are based on assuming that origin is the authoritative url and updates package.json based on this. In the case of this repo, it causes tests to fail locally.

This should be expecting origin to be the default branch to push/pull and upstream to be the authoritative repo because:

• This is the setup recommended by GitHub https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/configuring-a-remote-repository-for-a-fork
• This is what happens if you clone a repo "for contributing to the upstream project" in GitHub desktop
• This is what happens if you clone a repo in VSCode, try to push to that repo, and choose to create a fork when it prompts you to.

Per @lukekarrys in #338 (comment)

@rotu that is due to the autodetection of the origin by git. If you've forked the repo make sure that npm/template-oss is the origin and the remote url for your fork is named something different (eg fork):

❯ git remotes
fork	git@github.com:lukekarrys/template-oss.git (fetch)
fork	git@github.com:lukekarrys/template-oss.git (push)
origin	git@github.com:npm/template-oss.git (fetch)
origin	git@github.com:npm/template-oss.git (push)

[lukekarrys]

This tool is mainly designed to run in other repos where origin is the default remote.

Probably the best thing to do here is skip that check when specifically in this template-oss repo like we do with the version check.

Alternatively we could do the same thing we do in lib/content/_job.yml and hardcode a repository_owner type variable (which should probably be moved to `lib/content/index.js) and only apply the package.json git url if the current remote matches.

[rotu]

This issue does not just impact contributing to the template-oss repo. In npm-cli,

npm run lint

> npm@10.1.0 lint
> eslint "**/*.js"


> npm@10.1.0 postlint
> template-oss-check


Some problems were detected:

-------------------------------------------------------------------

The module file package.json needs to be updated:

  package.json
  ========================================
  "repository.url" is "https://github.com/npm/cli.git", expected "https://github.com/rotu/cli.git"

To correct it: npx template-oss-apply --force

-------------------------------------------------------------------

The module file package.json needs to be updated:

  docs/package.json
  ========================================
  "repository.url" is "https://github.com/npm/cli.git", expected "https://github.com/rotu/cli.git"

To correct it: npx template-oss-apply --force

-------------------------------------------------------------------
...

and it goes on like this for several more packages.