Plugins: Refactor plugin config into separate env var and request scoped services (#83261)

* seperate services for env + req

* merge with main

* fix tests

* undo changes to golden file

* fix linter

* remove unused fields

* split out new config struct

* provide config

* undo go mod changes

* more renaming

* fix tests

* undo bra.toml changes

* update go.work.sum

* undo changes

* trigger

* apply PR feedback

pkg/plugins/repo/service.go

@@ -21,7 +21,7 @@ type Manager struct {
 	log log.PrettyLogger
 }
 
-func ProvideService(cfg *config.Cfg) (*Manager, error) {
+func ProvideService(cfg *config.PluginManagementCfg) (*Manager, error) {
 	baseURL, err := url.JoinPath(cfg.GrafanaComURL, "/api/plugins")
 	if err != nil {
 		return nil, err