Update .goreleaser.yml and go.mod

Refactor Handler struct and matchedUpstreams function

The commit refactors the Handler struct in the handler.go file. It separates the upstreams into commonUpstreams and specialUpstreams based on the length of the Match field. The matchedUpstreams function is also updated to use the new struct fields.

Refactor DNS request encoding in DOH client

close #7 base64url RFC4648

⚡️ refactor domain match rule, improve CPU and memory efficiency

♻️ refactor code

🔒️ verify peer certificate

✨ 黑名单功能 使用 new bing

DoH RFC8484 base64 RFC4648

update