Add rpms-signature-scan steps

Author: upadhyeammit

.tekton/ros-backend-pull-request.yaml

@@ -283,6 +283,25 @@ spec:
         operator: in
         values:
         - "true"
+    - name: rpms-signature-scan
+      params:
+      - name: image-digest
+        value: $(tasks.build-container.results.IMAGE_DIGEST)
+      - name: image-url
+        value: $(tasks.build-container.results.IMAGE_URL)
+      - name: fail-unsigned
+        value: true
+      runAfter:
+      - build-container
+      taskRef:
+        params:
+        - name: name
+          value: rpms-signature-scan
+        - name: bundle
+          value: quay.io/konflux-ci/tekton-catalog/task-rpms-signature-scan:0.2@sha256:7aa4d3c95e2b963e82fdda392f7cb3d61e3dab035416cf4a3a34e43cf3c9c9b8
+        - name: kind
+          value: task
+        resolver: bundles
     - name: build-source-image
       params:
       - name: BINARY_IMAGE

.tekton/ros-backend-push.yaml

@@ -280,6 +280,25 @@ spec:
         operator: in
         values:
         - "true"
+    - name: rpms-signature-scan
+      params:
+      - name: image-digest
+        value: $(tasks.build-container.results.IMAGE_DIGEST)
+      - name: image-url
+        value: $(tasks.build-container.results.IMAGE_URL)
+      - name: fail-unsigned
+        value: true
+      runAfter:
+      - build-container
+      taskRef:
+        params:
+        - name: name
+          value: rpms-signature-scan
+        - name: bundle
+          value: quay.io/konflux-ci/tekton-catalog/task-rpms-signature-scan:0.2@sha256:7aa4d3c95e2b963e82fdda392f7cb3d61e3dab035416cf4a3a34e43cf3c9c9b8
+        - name: kind
+          value: task
+        resolver: bundles
     - name: build-source-image
       params:
       - name: BINARY_IMAGE