MINOR: Bump com.diffplug.spotless:spotless-maven-plugin from 2.44.4 to 3.4.0#1088

jbonofre merged 3 commits intomainapache/arrow-java:mainfrom

dependabot/maven/com.diffplug.spotless-spotless-maven-plugin-3.4.0apache/arrow-java:dependabot/maven/com.diffplug.spotless-spotless-maven-plugin-3.4.0Copy head branch name to clipboard