Bump apache-airflow from 2.4.1 to 2.4.2 (#916)

Bumps [apache-airflow](https://github.com/apache/airflow) from 2.4.1 to 2.4.2.
- [Release notes](https://github.com/apache/airflow/releases)
- [Changelog](https://github.com/apache/airflow/blob/2.4.2/RELEASE_NOTES.rst)
- [Commits](apache/airflow@2.4.1...2.4.2)

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

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

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

Author: dependabot[bot]

Pipfile

@@ -5,7 +5,7 @@ verify_ssl = true
 
 [dev-packages]
 pytest = "*"
-apache-airflow = "==2.4.1"
+apache-airflow = "==2.4.2"
 apache-airflow-providers-slack = "*"
 apache-airflow-providers-amazon = "*"
 apache-airflow-providers-ftp = "*"