chore(ci): update Go version and golangci-lint version

feat(linter): add new linters G118 and G704
refactor(proxy): optimize proxy status slice initialization
fix(api): clarify comment regarding URL construction
fix(deps): upgrade github.com/hashicorp/yamux to v0.1.2
docs(flags): improve DNS server flag description
refactor(controller): simplify port range return logic
refactor(featuregate): optimize enabled features string conversion

.golangci.yml

@@ -39,7 +39,9 @@ linters:
       - G404
       - G501
       - G115
+      - G118
       - G204
+      - G704
       severity: low
       confidence: low
     govet: