Merge pull request #2449 from ClickHouse/fix_release_target

set release target java version

Author: chernser

pom.xml

@@ -926,6 +926,10 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-compiler-plugin</artifactId>
+                        <configuration>
+                            <target>1.8</target>
+                            <source>1.8</source>
+                        </configuration>
                         <executions>
                             <execution>
                                 <id>java11</id>