Update the airflow version to 2.5.2(py3.8) in Dockerfile.

Add the constraint of markupsafe version to 2.0.1, according to the ref:
aws/aws-sam-cli#3661 (comment)

Author: crystaldust

docker/airflow/Dockerfile

@@ -1,4 +1,4 @@
-FROM apache/airflow:2.2.3-python3.8
+FROM apache/airflow:2.5.2-python3.8
 
 ENV DEBIAN_FRONTEND noninteractive
 
@@ -25,3 +25,5 @@ RUN pip install --no-cache-dir  'loguru>=0.5.3' \
 
 RUN pip install --no-cache-dir 'apache-airflow[password]==2.2.3'
 RUN pip install --no-cache-dir 'multidict==5.2.0'
+
+RUN pip install markupsafe==2.0.1