Use verifyFreezeReport.sh from download.eclipse.org

To prevent hiting raw.githubusercontent.com quota.

Change-Id: Ib078a0e5f1efc5a84d71b5c8becf7e81c076d91e
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.text/+/192215
Tested-by: Andrey Loskutov <loskutov@gmx.de>
Reviewed-by: Andrey Loskutov <loskutov@gmx.de>

Jenkinsfile

diff --git a/Jenkinsfile b/Jenkinsfile
index 5fa0c53..995b286 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -49,7 +49,7 @@
 				}
 			}
 			steps {
-				sh "wget https://raw.githubusercontent.com/eclipse-platform/eclipse.platform.releng.aggregator/master/scripts/verifyFreezePeriod.sh"
+				sh "wget https://download.eclipse.org/eclipse/relengScripts/scripts/verifyFreezePeriod.sh"
 				sh "chmod +x verifyFreezePeriod.sh"
 				withCredentials([string(credentialsId: 'google-api-key', variable: 'GOOGLE_API_KEY')]) {
 					sh './verifyFreezePeriod.sh'