Pass in secret to use for Gerrit voting

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: Ib9f5b990a7a62ff73eccbf336e0926add4658e6d
diff --git a/.github/workflows/verify-onos-component.yaml b/.github/workflows/verify-onos-component.yaml
index 44662f0..47bd494 100644
--- a/.github/workflows/verify-onos-component.yaml
+++ b/.github/workflows/verify-onos-component.yaml
@@ -49,6 +49,10 @@
         required: false
         type: string
         default: "false"
+    secrets:
+      GERRIT_SSH_PRIVKEY:
+        description: "SSH Key for the authorized user account"
+        required: true
 
 concurrency:
   # yamllint disable-line rule:line-length