build: optimize binary size and improve test accuracy

- Add a post-build hook to compress the generated binary with `xz` at level 9 compression

Signed-off-by: appleboy <appleboy.tw@gmail.com>

.goreleaser.yaml

@@ -71,6 +71,10 @@ builds:
     {{- else }}{{ .Arch }}{{ end }}
     {{- if .Arm }}-{{ .Arm }}{{ end }}
   no_unique_dist_dir: true
+  hooks:
+    post:
+      - cmd: xz -k -9 {{ .Path }}
+        dir: ./dist/
 
 archives:
   - format: binary