build: improve compression and update GitHub actions (#168)

- Add `dist` to .gitignore for gorelease binary folder
- Replace tar command with xz command in .goreleaser.yaml for better compression

ref: https://gitea.com/gitea/homebrew-gitea/pulls/164

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

Reviewed-on: https://gitea.com/gitea/act_runner/pulls/168
Reviewed-by: techknowlogick <techknowlogick@noreply.gitea.io>
Co-authored-by: appleboy <appleboy.tw@gmail.com>
Co-committed-by: appleboy <appleboy.tw@gmail.com>

.gitignore

@@ -8,3 +8,5 @@ coverage.txt
 # MS VSCode
 .vscode
 __debug_bin
+# gorelease binary folder
+dist