Bump apache-airflow from 2.10.5 to 3.1.8

Bumps [apache-airflow](https://github.com/apache/airflow) from 2.10.5 to 3.1.8.
- [Release notes](https://github.com/apache/airflow/releases)
- [Changelog](https://github.com/apache/airflow/blob/main/docker-stack-docs/changelog.rst)
- [Commits](apache/airflow@2.10.5...3.1.8)

---
updated-dependencies:
- dependency-name: apache-airflow
  dependency-version: 3.1.8
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Pipfile

@@ -4,7 +4,7 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-apache-airflow = "==2.10.5"
+apache-airflow = "==3.1.8"
 apache-airflow-providers-slack = "==9.0.0"
 boto3 = "==1.36.3"
 moto = "==5.0.11"