Fix build executor collision issues in Jenkins

Explicitly require that the declarative pipeline master run on a node with the
label pipeline so that the build itself can consume standard resources.

Change-Id: I16b46329fa4430336b884dff4d732d889ab65c73
Signed-off-by: Wesley Hirsch <wesley.hirsch@riftio.com>
diff --git a/Jenkinsfile b/Jenkinsfile
index 0c556a4..f6f9a71 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,7 @@
 pipeline {
-	agent any
+	agent {
+		label "pipeline"
+	}
 	stages {
 		stage("Build") {
 			agent {
@@ -11,6 +13,7 @@
 			}
 		}
 		stage("Repo Component") {
+			agent any
 			steps {
 				unstash "deb-files"
 				sh '''