migrate to jenkins pipeline (via #109)

Jenkinsfile

@@ -0,0 +1,26 @@
+pipeline {
+    agent {
+        label 'java'
+    }
+    tools {
+        maven 'default'
+    }
+
+    stages {
+        stage("Build") {
+            steps {
+                sh 'mvn -Dmaven.test.failure.ignore=true clean install'
+            }
+        }
+    }
+    post {
+        always {
+            deleteDir()
+        }
+
+        failure {
+            slackSend message: "${env.JOB_NAME} - #${env.BUILD_NUMBER} failed (<${env.BUILD_URL}|Open>)",
+                    color: 'danger', teamDomain: 'qameta', channel: 'allure', tokenCredentialId: 'allure-channel'
+        }
+    }
+}