change goreleaser to release.mode keep-existing

Author: Stanislav (Stas) Katkov

.goreleaser.yaml

@@ -80,6 +80,7 @@ release:
     owner: skatkov
     name: devtui
   name_template: "devtui-{{ .Tag }}"
+  mode: keep-existing
 homebrew_casks:
   - description: "A Swiss Army knife for developers"
     name: devtui