Chore: Update sigul key env var for prod

Signed-off-by: Kevin Sandi <ksandi@contractor.linuxfoundation.org>
Change-Id: I0e16c27a928d4644b27916055ac7bd8ea92c5403
diff --git a/jenkins-config/global-vars-production.sh b/jenkins-config/global-vars-production.sh
index 72dd525..e6dfb09 100644
--- a/jenkins-config/global-vars-production.sh
+++ b/jenkins-config/global-vars-production.sh
@@ -9,6 +9,6 @@
 RELEASE_USERNAME=o-ran-sc-release
 S3_BUCKET=
 SIGUL_BRIDGE_IP=44.232.126.158
-SIGUL_KEY=oran-release-2019
+SIGUL_KEY=oran-release-2022
 SILO=production
 MASTER_RTD_PROJECT=doc