Bump dbt-tests-adapter from 1.8.0 to 1.9.1

Bumps [dbt-tests-adapter](https://github.com/dbt-labs/dbt-adapters) from 1.8.0 to 1.9.1.
- [Release notes](https://github.com/dbt-labs/dbt-adapters/releases)
- [Changelog](https://github.com/dbt-labs/dbt-adapters/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dbt-labs/dbt-adapters/commits)

---
updated-dependencies:
- dependency-name: dbt-tests-adapter
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

dev-requirements.txt

@@ -2,7 +2,7 @@
 # git+https://github.com/dbt-labs/dbt-core.git#egg=dbt-core&subdirectory=core
 # git+https://github.com/dbt-labs/dbt-adapters.git#subdirectory=dbt-tests-adapter
 
-dbt-tests-adapter==1.8.0
+dbt-tests-adapter==1.9.1
 
 boto3
 mypy-boto3-glue