set propagate to true for linters and js build

fixes: CCI-121

flag=none

Test-Plan: things pass

Change-Id: Ic8aecc5993f892a37393c21edf0597922cae25af
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/219441
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Tested-by: Jenkins
Reviewed-by: Derek Bender <djbender@instructure.com>
Reviewed-by: S. Jacob Powell <spowell@instructure.com>
QA-Review: Rex Fleischer <rfleischer@instructure.com>
Product-Review: Rex Fleischer <rfleischer@instructure.com>

Jenkinsfile

@@ -207,7 +207,6 @@ pipeline {
             skipIfPreviouslySuccessful("linters") {
               build(
                 job: 'test-suites/linters',
-                propagate: false,
                 parameters: build_parameters
               )
             }
@@ -228,10 +227,8 @@ pipeline {
         stage('JS') {
           steps {
             skipIfPreviouslySuccessful("js") {
-              // propagate set to false until we can get tests passing
               build(
                 job: 'test-suites/JS',
-                propagate: false,
                 parameters: build_parameters
               )
             }