Update vc-executor docker build script

msa/vc-executor-docker/docker/Dockerfile

@@ -14,22 +14,18 @@
 # limitations under the License.
 #
 
-FROM thingsboard/openjdk11
+FROM thingsboard/openjdk11:bullseye-slim
 
 COPY start-tb-vc-executor.sh ${pkg.name}.deb /tmp/
 
-RUN mkdir -p /home/thingsboard/.config/jgit
-RUN chown -R ${pkg.user}:${pkg.user} /home/thingsboard
-
-RUN chmod a+x /tmp/*.sh \
-    && mv /tmp/start-tb-vc-executor.sh /usr/bin
-
-RUN yes | dpkg -i /tmp/${pkg.name}.deb
-RUN rm /tmp/${pkg.name}.deb
-
-RUN systemctl --no-reload disable --now ${pkg.name}.service > /dev/null 2>&1 || :
-
-RUN chmod 555 ${pkg.installFolder}/bin/${pkg.name}.jar
+RUN mkdir -p /home/thingsboard/.config/jgit \
+    && chown -R ${pkg.user}:${pkg.user} /home/thingsboard \
+    && chmod a+x /tmp/*.sh \
+    && mv /tmp/start-tb-vc-executor.sh /usr/bin && \
+    (yes | dpkg -i /tmp/${pkg.name}.deb) && \
+    rm /tmp/${pkg.name}.deb && \
+    (systemctl --no-reload disable --now ${pkg.name}.service > /dev/null 2>&1 || :) && \
+    chmod 555 ${pkg.installFolder}/bin/${pkg.name}.jar
 
 USER ${pkg.user}