feat: Avoid refixing successful template-oss PRs

[hashtagchris]

template-oss-fix previously returned open template-oss PRs regardless of status. If you continued it would force push to green PRs, leading to unnecessary churn and possibly resetting approvals.

I opted to make the new option an exclusion list because commits can have a status of null, in the case of merge conflicts or the "Post Dependabot" commit not triggering a new CI run. "null" is used to indicate the option should be empty.

Before

% npx -p @npmcli/stafftools@latest gh template-oss-fix --author null
Running worker "template-oss-fix" which will "Fix failing template-oss pull requests" on the following items:
✅  npm/abbrev-js                 chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
✅  npm/eslint-config             chore: bump @npmcli/template-oss from 4.23.2 to 4.23.3
✅  npm/hosted-git-info           chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
?   npm/hosted-git-info           chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
✅  npm/ignore-walk               chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
✅  npm/ini                       chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
❌  npm/map-workspaces            chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
✅  npm/minify-registry-metadata  chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/minipass-fetch            chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
✅  npm/npm-package-arg           chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
❌  npm/npm-packlist              chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/npm-pick-manifest         chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/query                     chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
✅  npm/ssri                      chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
✅  npm/stafftools                chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
?   npm/types                     chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
🔄  npm/unique-slug               chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3

Press any key to continue or CTRL+C to exit

After

% ./bin/gh.mjs template-oss-fix --author null
Running worker "template-oss-fix" which will "Fix failing template-oss pull requests" on the following items:
?   npm/cmd-shim           chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
?   npm/hosted-git-info    chore: bump @npmcli/template-oss from 4.23.1 to 4.23.3
❌  npm/map-workspaces     chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/minipass-fetch     chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/npm-packlist       chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/npm-pick-manifest  chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
❌  npm/query              chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3
?   npm/types              chore: bump @npmcli/template-oss from 4.22.0 to 4.23.3

Press any key to continue or CTRL+C to exit

References

Spotted while working on merging PRs ahead of npm/cli#7754