[MM-31132] app/server: add pprof endpoint (#17001)

* app/server: add pprof endpoint

* reflect review comments

* make metrics link conditional

* app/server: add metrics server setup to licence listeners

* refactor a bit

* trigger CI

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

einterfaces/metrics.go

@@ -8,8 +8,7 @@ import (
 )
 
 type MetricsInterface interface {
-	StartServer()
-	StopServer()
+	Register()
 
 	IncrementPostCreate()
 	IncrementWebhookPost()

einterfaces/mocks/MetricsInterface.go

@@ -260,12 +260,7 @@ func (_m *MetricsInterface) ObserveStoreMethodDuration(method string, success st
 	_m.Called(method, success, elapsed)
 }
 
-// StartServer provides a mock function with given fields:
-func (_m *MetricsInterface) StartServer() {
-	_m.Called()
-}
-
-// StopServer provides a mock function with given fields:
-func (_m *MetricsInterface) StopServer() {
+// Register provides a mock function with given fields:
+func (_m *MetricsInterface) Register() {
 	_m.Called()
 }