MM-21626, MM-21627 - Plugin API/Hooks Prometheus instrumentati… (#13825)

* MM-21626,MM-21627 - Plugin API/Hooks Prometheus instrumentation

* Updated einterface mocks

* Fixed supervisor tests

* ignoring golint errors for plugin metrics wrappers

* Making golangci happy

* Using variadic form when generating wrapper code

* Removed artificial delay

* Removed comments from tests

* Renaming plugin wrappers to api/hooks_timer_layer

* updating vendor dir and mod files

* Recording plugin api/hook responses in prometheus

* Updated einterfaces-mocks

* Updating go sum

* Updating go sum

* Fixing conflicts

* More conflicts fixing

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

app/plugin.go

@@ -161,7 +161,7 @@ func (a *App) InitPlugins(pluginDir, webappPluginDir string) {
 		return
 	}
 
-	env, err := plugin.NewEnvironment(a.NewPluginAPI, pluginDir, webappPluginDir, a.Log())
+	env, err := plugin.NewEnvironment(a.NewPluginAPI, pluginDir, webappPluginDir, a.Log(), a.Metrics())
 	if err != nil {
 		mlog.Error("Failed to start up plugins", mlog.Err(err))
 		return