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

* Use request.CTX instead of *request.Context

* Fix tests

server/channels/web/oauth_test.go

@@ -687,7 +687,7 @@ func closeBody(r *http.Response) {
 type MattermostTestProvider struct {
 }
 
-func (m *MattermostTestProvider) GetUserFromJSON(_ *request.Context, data io.Reader, tokenUser *model.User) (*model.User, error) {
+func (m *MattermostTestProvider) GetUserFromJSON(_ request.CTX, data io.Reader, tokenUser *model.User) (*model.User, error) {
 	var user model.User
 	if err := json.NewDecoder(data).Decode(&user); err != nil {
 		return nil, err
@@ -696,15 +696,15 @@ func (m *MattermostTestProvider) GetUserFromJSON(_ *request.Context, data io.Rea
 	return &user, nil
 }
 
-func (m *MattermostTestProvider) GetSSOSettings(_ *request.Context, config *model.Config, service string) (*model.SSOSettings, error) {
+func (m *MattermostTestProvider) GetSSOSettings(_ request.CTX, config *model.Config, service string) (*model.SSOSettings, error) {
 	return &config.GitLabSettings, nil
 }
 
-func (m *MattermostTestProvider) GetUserFromIdToken(_ *request.Context, token string) (*model.User, error) {
+func (m *MattermostTestProvider) GetUserFromIdToken(_ request.CTX, token string) (*model.User, error) {
 	return nil, nil
 }
 
-func (m *MattermostTestProvider) IsSameUser(_ *request.Context, dbUser, oauthUser *model.User) bool {
+func (m *MattermostTestProvider) IsSameUser(_ request.CTX, dbUser, oauthUser *model.User) bool {
 	return dbUser.AuthData == oauthUser.AuthData
 }