chore: upgrade tap@21

[reggi]

apart of: npm/statusboard#913

Outline of Changes (all of these don't need to be in this PR and can be broken down individually)

1. updates tap dep to 21
2. Tap changed t.mock to t.mockRequire
3. updates template-oss to change tap.exclude in package.json
4. At the time of this PR vendored node_modules is dirty and needs updates from npa (should be in another pr)
5. Discovery that tap@21 needs ./node_modules/minipass/dist/commonjs/index.js.map checked in to run correctly
6. Including all .map files within node_modules, currently we don't check in .md, .ts, and .map (should be in another pr)
7. Update all snapshots to the new format
8. Custom file fixes
   • test/lib/cli/update-notifier.js
   • test/lib/commands/diff.js
   • test/lib/commands/doctor.js
   • test/lib/commands/exec.js
   • test/lib/commands/explore.js
   • test/lib/commands/link.js
   • test/lib/commands/ls.js
   • test/lib/commands/run-script.js
   • test/lib/utils/log-file.js
9. Move on to workspaces
10. Ensure we still maintain 100% coverage