bug: requiring repository breaks PR integ

Signed-off-by: Sarah Christoff <28318173+schristoff@users.noreply.github.com>

Author: schristoff

.github/workflows/integ-reuseable-workflow.yml

@@ -8,7 +8,6 @@ on:
             required: true
         registry:
             type: string
-            required: true
             default: ghcr.io
 env:
     GOVERSION: 1.20.7