#314 Copy HSC only artifacts to staging repo

Builds and integration tests copy many files to the mavenBuildRepo.
But JReleaser only wants to find the files for upload to Maven
Central. Therefore we copy those file to a `mavenStagingRepo`.

Somehow this seems to also have solved occasional flaws wrt
signing the artifacts which is necessary for Maven Central.

build.gradle

@@ -74,33 +74,35 @@ ext.urls = [
         developerConnection: 'scm:git:ssh://github.com/aim42/htmlSanityCheck.git'
 ]
 
-// tag::mavenBuildRepo[]
 File baseBuildDir = file("${project.rootDir}/${Project.DEFAULT_BUILD_DIR_NAME}")
 File mavenBuildRepo = new File(baseBuildDir, "maven-repo")
-// end::mavenBuildRepo[]
 
 tasks.register("cleanMavenBuildRepo", Delete) {
-    description "Clean intermediate Maven Repository '${mavenBuildRepo}'"
+    description "Clean intermediate local Maven Repository '${mavenBuildRepo}'"
     delete mavenBuildRepo
 }
 
-tasks.register('signAll') {
-    doLast {
-        logger.quiet("Signed all artifacts for upload with JReleaser")
-    }
+File mavenStagingRepo = new File(baseBuildDir, "staging-repo")
+
+tasks.register("cleanMavenStagingRepo", Delete) {
+    description "Clean intermediate staging Maven Repository '${mavenStagingRepo}'"
+    delete mavenBuildRepo
+}
+
+tasks.register("copyOrgAim42ToStagingRepo", Copy) {
+    description = "Copy 'org/aim42' from '${mavenBuildRepo}; to '${mavenStagingRepo}'"
+    from new File(mavenBuildRepo, "org/aim42")
+    into new File(mavenStagingRepo, "org/aim42")
 }
-signAll.dependsOn(
-        ':htmlSanityCheck-core:signMavenJavaPublication',
-        ':htmlSanityCheck-gradle-plugin:signHtmlSanityCheckPluginMarkerMavenPublication',
-        ':htmlSanityCheck-gradle-plugin:signPluginMavenPublication'
-)
 
-jreleaserDeploy.dependsOn(
-        'signAll',
+copyOrgAim42ToStagingRepo.dependsOn(
         ':htmlSanityCheck-core:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository',
-        ':htmlSanityCheck-gradle-plugin:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository'
+        ':htmlSanityCheck-gradle-plugin:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository',
+        ':htmlSanityCheck-maven-plugin:publishAllPublicationsToMyLocalRepositoryForFullIntegrationTestsRepository'
 )
 
+jreleaserDeploy.dependsOn(copyOrgAim42ToStagingRepo)
+
 jreleaser {
     project {
         license = 'Apache-2.0'