Bump bats from 1.8.2 to 1.9.0 (#282)

Bumps [bats](https://github.com/bats-core/bats-core) from 1.8.2 to 1.9.0.
- [Release notes](https://github.com/bats-core/bats-core/releases)
- [Changelog](https://github.com/bats-core/bats-core/blob/master/docs/CHANGELOG.md)
- [Commits](https://github.com/bats-core/bats-core/compare/v1.8.2...v1.9.0)

---
updated-dependencies:
- dependency-name: bats
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -1,6 +1,6 @@
 {
   "devDependencies": {
-    "bats": "^1.8.2",
+    "bats": "^1.9.0",
     "bats-assert": "ztombol/bats-assert",
     "bats-support": "ztombol/bats-support"
   },