Bump mlflow from 2.8.0 to 2.8.1 (#606)

Bumps [mlflow](https://github.com/mlflow/mlflow) from 2.8.0 to 2.8.1.
- [Release notes](https://github.com/mlflow/mlflow/releases)
- [Changelog](https://github.com/mlflow/mlflow/blob/master/CHANGELOG.md)
- [Commits](mlflow/mlflow@v2.8.0...v2.8.1)

---
updated-dependencies:
- dependency-name: mlflow
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Pipfile

@@ -8,7 +8,7 @@ black = "*"
 isort = "*"
 
 [dev-packages]
-mlflow = "==2.8.0"
+mlflow = "==2.8.1"
 boto3 = "*"
 psycopg2-binary = "*"
 google-cloud-storage = "*"