Chore: Convert background service registry to dskit module (#64062)

* Chore: Add initial support for deployment modes

* revert CLI changes and start modules independently

* add modules to codeowners

* additional comments

* add Engine and Manager interface to fix test issues

* convert background service registry to dskit module

* remove extra context from serviceListener logger

Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>

* Remove whitespace

* fix import

* undo ide changes

* only register All by default

* with registry

* add test

* add comments

* re-add debug log

* fix import

* reorganize arg

* undo kind changes

* add provide service test

* fix import

* rejig systemd calls

* update codeowners

---------

Co-authored-by: Todd Treece <todd.treece@grafana.com>
Co-authored-by: Todd Treece <360020+toddtreece@users.noreply.github.com>

pkg/tests/testinfra/testinfra.go

@@ -60,7 +60,7 @@ func StartGrafanaEnv(t *testing.T, grafDir, cfgPath string) (string, *server.Tes
 
 	go func() {
 		// When the server runs, it will also build and initialize the service graph
-		if err := env.Server.Run(); err != nil {
+		if err := env.Server.Run(ctx); err != nil {
 			t.Log("Server exited uncleanly", "error", err)
 		}
 	}()