[chore]: Bump github.com/gin-contrib/gzip from 1.1.0 to 1.2.2 (#3693)

Bumps [github.com/gin-contrib/gzip](https://github.com/gin-contrib/gzip) from 1.1.0 to 1.2.2.
- [Release notes](https://github.com/gin-contrib/gzip/releases)
- [Changelog](https://github.com/gin-contrib/gzip/blob/master/.goreleaser.yaml)
- [Commits](https://github.com/gin-contrib/gzip/compare/v1.1.0...v1.2.2)

---
updated-dependencies:
- dependency-name: github.com/gin-contrib/gzip
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

vendor/github.com/gin-contrib/sse/sse-encoder.go

@@ -18,7 +18,7 @@ import (
 // W3C Working Draft 29 October 2009
 // http://www.w3.org/TR/2009/WD-eventsource-20091029/
 
-const ContentType = "text/event-stream"
+const ContentType = "text/event-stream;charset=utf-8"
 
 var contentType = []string{ContentType}
 var noCache = []string{"no-cache"}
@@ -72,6 +72,14 @@ func writeRetry(w stringWriter, retry uint) {
 
 func writeData(w stringWriter, data interface{}) error {
 	w.WriteString("data:")
+
+	bData, ok := data.([]byte)
+	if ok {
+		dataReplacer.WriteString(w, string(bData))
+		w.WriteString("\n\n")
+		return nil
+	}
+
 	switch kindOfData(data) {
 	case reflect.Struct, reflect.Slice, reflect.Map:
 		err := json.NewEncoder(w).Encode(data)