Replace interface{} with any (#25686)

Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.

Basically the same [as golang did](2580d0e08d).

cmd/dump.go

@@ -161,7 +161,7 @@ It can be used for backup and capture Gitea server image to send to maintainer`,
 	},
 }
 
-func fatal(format string, args ...interface{}) {
+func fatal(format string, args ...any) {
 	fmt.Fprintf(os.Stderr, format+"\n", args...)
 	log.Fatal(format, args...)
 }
@@ -236,7 +236,7 @@ func runDump(ctx *cli.Context) error {
 		return err
 	}
 
-	var iface interface{}
+	var iface any
 	if fileName == "-" {
 		iface, err = archiver.ByExtension(fmt.Sprintf(".%s", outType))
 	} else {