chore(deps): update plugin com.gradle.plugin-publish to v1.2.1 (#1800)

Author: nedtwigg

settings.gradle

@@ -8,7 +8,7 @@ pluginManagement {
 plugins {
 	id 'com.diffplug.spotless' version '6.18.0' apply false
 	// https://plugins.gradle.org/plugin/com.gradle.plugin-publish
-	id 'com.gradle.plugin-publish' version '1.2.0' apply false
+	id 'com.gradle.plugin-publish' version '1.2.1' apply false
 	// https://github.com/gradle-nexus/publish-plugin/releases
 	id 'io.github.gradle-nexus.publish-plugin' version '1.3.0' apply false
 	// https://github.com/spotbugs/spotbugs-gradle-plugin/releases