build(deps): bump apache-airflow from 2.6.1 to 2.7.0 in /docker/datahub-ingestion-base #21702

Job	Run time
build (./gradlew build -x :metadata-ingestion:build -x :metadata-ingestion:check -x docs-website:...	18m 19s
build (./gradlew build -x :metadata-ingestion:build -x :metadata-ingestion:check -x docs-website:...	14m 20s
build (./gradlew :datahub-frontend:build :datahub-web-react:build --parallel, UTC)	17m 13s
build (./gradlew :datahub-frontend:build :datahub-web-react:build --parallel, America/New_York)	19m 49s
build (./gradlew :metadata-ingestion-modules:airflow-plugin:build --parallel, UTC)	6m 35s
build (./gradlew :metadata-ingestion-modules:airflow-plugin:build --parallel, America/New_York)	6m 3s
quickstart-compose-validation	19s
event-file	3s
	1h 22m 41s

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