Fix function

vars/construirPaquete.groovy

@@ -1,10 +1,10 @@
 def call(String buildDir, String artifactsDir, String remoteHost, String remotePath) {
     dir(buildDir) {
-        sh '''
+        sh """
         dpkg-buildpackage -us -uc
         mkdir -p ${artifactsDir} && mv ../*.deb ../*.changes ../*.buildinfo ${artifactsDir}/
         ssh aptly@${remoteHost} "rm -rf ${remotePath}/* && mkdir -p ${remotePath}"
         scp -r ${artifactsDir}/* aptly@${remoteHost}:${remotePath}/
-        '''
+        """
     }
 }