add Jenkinsfile for stats

Jenkinsfile_stats

@@ -0,0 +1,23 @@
+node {
+    stage('Preparation') { 
+     properties([
+         parameters([
+            buildSelector(
+            defaultSelector: lastSuccessful(),
+            description: 'Which build to use for copying artifacts',
+            name: 'BUILD_SELECTOR')
+             
+         ])
+     ])
+ }
+    stage('Copy artifacts') {
+        copyArtifacts fingerprintArtifacts: true, projectName: 's452662-create-dataset', selector: buildParameter('BUILD_SELECTOR')
+    }
+    stage('Script') {
+        sh '''wc -l Car_Prices_Poland_Kaggle.csv > cars_stats.txt
+        '''
+    }
+    stage('Archive artifacts') {
+        archiveArtifacts artifacts: '*.txt', followSymlinks: false
+    }
+}