Update quay.io/redhat-appstudio/cachi2 Docker tag to v0.13.0

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

.tekton/buildah.yaml

@@ -434,7 +434,7 @@ spec:
       runAsUser: 0
 
   - name: merge-cachi2-sbom
-    image: quay.io/redhat-appstudio/cachi2:0.7.0@sha256:1fc772aa3636fd0b43d62120d832e5913843e028e8cac42814b487c3a0a32bd8
+    image: quay.io/redhat-appstudio/cachi2:0.13.0@sha256:eb34cfe3fea20997eebd8164dc93eedb2fd7a60dc1fb4afcc1b1ff43df9d6667
     script: |
       if [ -f "sbom-cachi2.json" ]; then
         echo "Merging contents of sbom-cachi2.json into sbom-cyclonedx.json"