Bump com.diffplug.spotless:spotless-maven-plugin from 3.0.0 to 3.1.0#40

dependabot[bot] wants to merge 1 commit intomasterLibrePDF/OpenRTF:masterfrom

dependabot/maven/com.diffplug.spotless-spotless-maven-plugin-3.1.0LibrePDF/OpenRTF:dependabot/maven/com.diffplug.spotless-spotless-maven-plugin-3.1.0Copy head branch name to clipboard