[Improvement-11834] Upgrade docker base image to support python3.9 (#11835)

* use openjdk:8-jre-slim-bullseye instead of buster to support python3.9

* use openjdk:8-jre-slim-bullseye instead of buster across all components

.github/workflows/cluster-test/mysql/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 RUN apt update ; \
     apt install -y curl wget default-mysql-client sudo openssh-server netcat-traditional ;

.github/workflows/cluster-test/postgresql/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 RUN apt update ; \
     apt install -y curl wget sudo openssh-server netcat-traditional ;

dolphinscheduler-alert/dolphinscheduler-alert-server/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai

dolphinscheduler-api/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai

dolphinscheduler-master/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai

dolphinscheduler-standalone-server/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai

dolphinscheduler-tools/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai

dolphinscheduler-worker/src/main/docker/Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-FROM openjdk:8-jre-slim-buster
+FROM openjdk:8-jre-slim-bullseye
 
 ENV DOCKER true
 ENV TZ Asia/Shanghai