temp fix GPG key incorrect

Dockerfile

@@ -44,7 +44,7 @@ ARG AIRFLOW_UID="50000"
 ARG AIRFLOW_USER_HOME_DIR=/home/airflow
 
 # latest released version here
-ARG AIRFLOW_VERSION="2.7.2"
+ARG AIRFLOW_VERSION="2.7.3"
 
 ARG PYTHON_BASE_IMAGE="python:3.8-slim-bullseye"
 
@@ -1479,6 +1479,9 @@ ARG AIRFLOW_PIP_VERSION=23.3.1
 ENV AIRFLOW_PIP_VERSION=${AIRFLOW_PIP_VERSION}
 COPY --from=scripts common.sh /scripts/docker/
 
+# Temporary fix due to incorrect MYSQL GPG Key:
+RUN rm /etc/apt/sources.list.d/mysql.list 
+
 # Only copy mysql/mssql installation scripts for now - so that changing the other
 # scripts which are needed much later will not invalidate the docker layer here.
 COPY --from=scripts install_mysql.sh install_mssql.sh install_postgres.sh /scripts/docker/