Update go version to 1.25.0 (#1129)

Author: pdabelf5

go.mod

@@ -1,12 +1,12 @@
 module github.com/nginx/nginx-prometheus-exporter
 
-go 1.24.2
+go 1.25.0
 
 require (
 	github.com/alecthomas/kingpin/v2 v2.4.0
 	github.com/nginx/nginx-plus-go-client/v3 v3.0.0
-	github.com/prometheus/client_golang v1.23.0
 	github.com/pires/go-proxyproto v0.8.1
+	github.com/prometheus/client_golang v1.23.0
 	github.com/prometheus/common v0.65.0
 	github.com/prometheus/exporter-toolkit v0.14.0
 )