update do zadania 2 z lab 06

Jenkinsfile-evaluation

@@ -8,6 +8,12 @@ pipeline{
             defaultValue: 'master',
             description: 'Select the branch of training'
         )
+
+        buildSelector(
+            name: 'BUILD_SELECTOR',
+            description: 'Which build to use for copying artifacts',
+            defaultSelector: lastSuccessful()
+        )
     }
 
     stages{
@@ -23,7 +29,7 @@ pipeline{
                     copyArtifacts(
                         projectName: myProject,
                         fingerprintArtifacts: true,
-                        selector: [$class: 'SpecificBuildSelector', buildNumber: "lastSuccessfulBuild"]
+                        selector: buildParameter('BUILD_SELECTOR')
                     )
                 }
             }