fix(deps): update minor+patch dependencies (#30)

Author: renovatebot-confluentinc[bot]

pom.xml

@@ -16,8 +16,8 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>${target.java.version}</maven.compiler.source>
         <maven.compiler.target>${target.java.version}</maven.compiler.target>
-        <log4j.version>2.25.3</log4j.version>
-        <spotless.version>3.3.0</spotless.version>
+        <log4j.version>2.25.4</log4j.version>
+        <spotless.version>3.4.0</spotless.version>
     </properties>
 
     <repositories>