♻️ Run doc-test generation as an explicit CI step

Drop the `pretest:ci` lifecycle hook and call `create:doc-tests` from the
`build` job before `test:ci`. The hook hid the step from the job log and
made `test:ci` behave differently under npm than when run directly.

package.json

@@ -60,7 +60,6 @@
         "maintain:knip": "knip --include dependencies,exports,files",
         "maintain:outdated": "check-outdated --ignore-pre-releases --ignore-packages @types/node",
         "test": "npm run check:tsc && node --test --strip-types \"src/**/*.test.ts\"",
-        "pretest:ci": "npm run create:doc-tests",
         "test:ci": "npm run test:coverage && npm run test:doc",
         "test:coverage": "c8 --all --include \"src/**/*.ts\" --reporter=text --reporter=lcov --reporter=html --100 node --test --strip-types $(git ls-files 'src/*.test.ts')",
         "test:doc": "node --test --strip-types \"src/doc-test/__generated__/*.test.ts\"",