Display the version of runner in the runner list (#23490)

Close: #23489 

### Change
1. Add version column to action_runner table.
2. Read the runner version from the request header, and update it in DB.
3. Display version in runner list

### Screenshot

![image](https://user-images.githubusercontent.com/33891828/225220990-98bc0158-4403-4e6c-9805-31bbbc65a802.png)

models/actions/runner.go

@@ -25,6 +25,7 @@ type ActionRunner struct {
 	ID          int64
 	UUID        string                 `xorm:"CHAR(36) UNIQUE"`
 	Name        string                 `xorm:"VARCHAR(255)"`
+	Version     string                 `xorm:"VARCHAR(64)"`
 	OwnerID     int64                  `xorm:"index"` // org level runner, 0 means system
 	Owner       *user_model.User       `xorm:"-"`
 	RepoID      int64                  `xorm:"index"` // repo level runner, if orgid also is zero, then it's a global

models/migrations/migrations.go

@@ -473,6 +473,8 @@ var migrations = []Migration{
 	NewMigration("Add missed column owner_id for project table", v1_20.AddNewColumnForProject),
 	// v247 -> v248
 	NewMigration("Fix incorrect project type", v1_20.FixIncorrectProjectType),
+	// v248 -> v249
+	NewMigration("Add version column to action_runner table", v1_20.AddVersionToActionRunner),
 }
 
 // GetCurrentDBVersion returns the current db version

models/migrations/v1_20/v248.go

@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import "xorm.io/xorm"
+
+func AddVersionToActionRunner(x *xorm.Engine) error {
+	type ActionRunner struct {
+		Version string `xorm:"VARCHAR(64)"` // the version of act_runner
+	}
+
+	return x.Sync(new(ActionRunner))
+}