Use request.CTX instead of *request.Context (#24877)

* Use request.CTX instead of *request.Context

* Fix tests

server/channels/app/onboarding.go

@@ -14,7 +14,7 @@ import (
 	"github.com/mattermost/mattermost/server/v8/channels/store"
 )
 
-func (a *App) markAdminOnboardingComplete(c *request.Context) *model.AppError {
+func (a *App) markAdminOnboardingComplete(c request.CTX) *model.AppError {
 	firstAdminCompleteSetupObj := model.System{
 		Name:  model.SystemFirstAdminSetupComplete,
 		Value: "true",
@@ -27,7 +27,7 @@ func (a *App) markAdminOnboardingComplete(c *request.Context) *model.AppError {
 	return nil
 }
 
-func (a *App) CompleteOnboarding(c *request.Context, request *model.CompleteOnboardingRequest) *model.AppError {
+func (a *App) CompleteOnboarding(c request.CTX, request *model.CompleteOnboardingRequest) *model.AppError {
 	isCloud := a.Srv().License() != nil && *a.Srv().License().Features.Cloud
 
 	if !isCloud && request.Organization == "" {