chore(deps): update dependency apache-airflow to v2.6.2 (#10342)

Author: renovate-bot

composer/blog/gcp-tech-blog/data-orchestration-with-composer/requirements.txt

@@ -1,6 +1,6 @@
 # be sure to update the constraints file to match
 # see https://airflow.apache.org/docs/apache-airflow/stable/installation/installing-from-pypi.html#constraints-files
-apache-airflow[google]==2.6.1
+apache-airflow[google]==2.6.2
 apache-airflow-providers-apache-beam==4.1.0
 apache-airflow-providers-slack==7.0.0
 apache-airflow-providers-http==3.0.0

composer/blog/gcp-tech-blog/unit-test-dags-cloud-build/requirements.txt

@@ -1,4 +1,4 @@
 # be sure to update the constraints file to match
 # see https://airflow.apache.org/docs/apache-airflow/stable/installation/installing-from-pypi.html#constraints-files
-apache-airflow[gcp]==2.6.1
+apache-airflow[gcp]==2.6.2
 apache-airflow-backport-providers-google==2021.3.3