gorelease: don't shallow clone on git-clone

goreleaser will need a full clone and since git-init define 0 as no
shallow then use that number

(default is only one commit)

Signed-off-by: Chmouel Boudjnah <[email protected]>

Author: chmouel

.tekton/release-pipeline.yaml

@@ -30,7 +30,7 @@ spec:
             workspace: source
         params:
           - name: depth
-            value: "500"
+            value: "0"
           - name: url
             value: $(params.repo_url)
           - name: revision