bump pulsar client to 2.9.1, log4j to 2.17.0 (#6)

Author: fu-turer

build.gradle

@@ -46,9 +46,9 @@ shadowJar {
 }
 
 dependencies {
-    implementation 'org.apache.logging.log4j:log4j-core:2.14.1'
-    implementation 'org.apache.logging.log4j:log4j-api:2.14.1'
-    implementation 'org.apache.pulsar:pulsar-client:2.9.0'
+    implementation 'org.apache.logging.log4j:log4j-core:2.17.0'
+    implementation 'org.apache.logging.log4j:log4j-api:2.17.0'
+    implementation 'org.apache.pulsar:pulsar-client:2.9.1'
     implementation files(LOGSTASH_CORE_PATH + '/../logstash-core/build/libs/logstash-core-7.15.2.jar')