Wait for pom to be generated before packaging in PomInclusionPlugin

It was configured to do packaging and pom generation simultaneously and
jar packaging for plugins was sometimes faster than pom generation.
This lead to failing init tests for the testall plugin, which
requires the scala library, after a fresh clean.

Author: hlxid

build/src/main/scala/org/codeoverflow/chatoverflow/build/PomInclusionPlugin.scala

@@ -23,10 +23,7 @@ object PomInclusionPlugin extends AutoPlugin {
   // Adds our custom task before the packageBin task
   override val projectSettings: Seq[Def.Setting[_]] =
     inConfig(Compile)(Seq(
-      Compile / packageBin := {
-        addPomToOutput.value
-        (Compile / packageBin).value
-      }
+      Compile / packageBin := (Compile / packageBin).dependsOn(addPomToOutput).value
     ))
 
   // Sets default values