Move external documentation links to a task input in Dackka (#4033)

* Move external links in dackka to an input

This will allow the package-list files to be cached, and monitored for updates.

* Maybe fixed merge conflict

* Fixed formatting

* Removed duplicate configurations

Author: daymxn

buildSrc/src/main/java/com/google/firebase/gradle/plugins/DackkaPlugin.kt

@@ -286,15 +286,28 @@ abstract class DackkaPlugin : Plugin<Project> {
     val outputJavadocFolder = project.childFile(outputDirectory, "android")
     val outputKotlindocFolder = project.childFile(outputDirectory, "kotlin")
 
+<<<<<<< HEAD
     val separateJavadoc =
       project.tasks.register<Copy>("separateJavadoc") {
         dependsOn("generateDackkaDocumentation")
+=======
+                    docsTask.configure {
+                        // this will become useful with the agp upgrade, as they're separate in 7.x+
+                        val sourcesForKotlin = emptyList<File>()
+                        val packageLists = fetchPackageLists(project)
+>>>>>>> b159f2703 (Move external documentation links to a task input in Dackka (#4033))
 
         val javadocClientFolder = project.childFile(dackkaOutputDirectory, "reference/client")
         val javadocComFolder = project.childFile(dackkaOutputDirectory, "reference/com")
 
+<<<<<<< HEAD
         fromDirectory(javadocClientFolder)
         fromDirectory(javadocComFolder)
+=======
+                        javaSources.set(fixedJavaSources)
+                        suppressedFiles.set(excludedFiles)
+                        packageListFiles.set(packageLists)
+>>>>>>> b159f2703 (Move external documentation links to a task input in Dackka (#4033))
 
         into(outputJavadocFolder)
       }