Add 2.4.0b1 to issue template (#26242)
Add 2.4.0b1 to issue template (#26242)


nathanielvarona/airflow,cfei18/incubator-airflow,apache/airflow,apache/airflow,cfei18/incubator-airflow,apache/airflow,apache/airflow,cfei18/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,nathanielvarona/airflow,cfei18/incubator-airflow,apache/airflow,nathanielvarona/airflow,apache/airflow,cfei18/incubator-airflow,nathanielvarona/airflow,nathanielvarona/airflow