Remove reference to removed bats test tasks

The oss and default bats tests were removed, but these references to
them remained, causing gradle failures when trying to run packaging
tests. While the upgrade and plugins bats tests should still be tested,
that is being handled in #51565. This commit removes the outdated
references.

closes #51974

qa/os/build.gradle

@@ -67,7 +67,7 @@ processTestResources {
 
 subprojects { Project platformProject ->
   tasks.register('packagingTest') {
-    dependsOn 'distroTest', 'batsTest.oss', 'batsTest.default'
+    dependsOn 'distroTest'
   }
 
   vagrant {