chore: bump Golang to v1.25.7

Author: csuzhangxc

cmd/http-service/go.mod

@@ -1,8 +1,8 @@
 module github.com/pingcap/tidb-operator/http-service
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.24.12
+toolchain go1.25.7
 
 require (
 	github.com/gin-gonic/gin v1.10.0

docs/CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ## Prerequisites
 
-Please install [Go 1.24.x](https://go.dev/doc/install). If you want to run TiDB Operator locally, please also install the latest version of [Docker](https://www.docker.com/get-started/), [kind](https://kind.sigs.k8s.io/docs/user/quick-start/), [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl) and [Helm](https://helm.sh/docs/intro/quickstart/).
+Please install [Go 1.25.x](https://go.dev/doc/install). If you want to run TiDB Operator locally, please also install the latest version of [Docker](https://www.docker.com/get-started/), [kind](https://kind.sigs.k8s.io/docs/user/quick-start/), [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl) and [Helm](https://helm.sh/docs/intro/quickstart/).
 
 ## Workflow
 

go.mod

@@ -4,9 +4,9 @@
 
 module github.com/pingcap/tidb-operator
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.24.12
+toolchain go1.25.7
 
 require (
 	cloud.google.com/go/storage v1.35.1

pkg/apis/go.mod

@@ -1,8 +1,8 @@
 module github.com/pingcap/tidb-operator/pkg/apis
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.24.12
+toolchain go1.25.7
 
 require (
 	github.com/BurntSushi/toml v0.3.1

pkg/client/go.mod

@@ -1,8 +1,8 @@
 module github.com/pingcap/tidb-operator/pkg/client
 
-go 1.24.0
+go 1.25.0
 
-toolchain go1.24.12
+toolchain go1.25.7
 
 require (
 	github.com/pingcap/tidb-operator/pkg/apis v1.6.5