Fix bundle-push Tekton pipeline

Signed-off-by: Sergio Arroutbi <[email protected]>

Author: sarroutbi

.tekton/nbde-tang-server-bundle-push.yaml

@@ -24,7 +24,7 @@ spec:
   - name: output-image
     value: quay.io/redhat-user-workloads/sarroutb-tenant/nbde-tang-server/nbde-tang-server-bundle:{{revision}}
   - name: dockerfile
-    value: bundle/Dockerfile
+    value: bundle.Dockerfile
   pipelineSpec:
     description: |
       This pipeline is ideal for building container images from a Containerfile while maintaining trust after pipeline customization.