Add OpenFeature providers (#101071)

* Add OpenFeature provider

* Simplify static provider

* Linting

* Apply review feedback

* Codeowner for deps

* Update pkg/services/featuremgmt/openfeature.go

Co-authored-by: Dave Henderson <dave.henderson@grafana.com>

* Apply review comments part2

* Remove from sample.ini for now

* fixup! Apply review comments part2

* Add example of context config

* Resolve conflict

* Run update workspaces

---------

Co-authored-by: Dave Henderson <dave.henderson@grafana.com>

pkg/server/wire.go

@@ -301,6 +301,7 @@ var wireBasicSet = wire.NewSet(
 	expr.ProvideService,
 	featuremgmt.ProvideManagerService,
 	featuremgmt.ProvideToggles,
+	featuremgmt.ProvideOpenFeatureService,
 	dashboardservice.ProvideDashboardServiceImpl,
 	wire.Bind(new(dashboards.PermissionsRegistrationService), new(*dashboardservice.DashboardServiceImpl)),
 	dashboardservice.ProvideDashboardService,

pkg/server/wireexts_oss.go

@@ -147,6 +147,7 @@ var wireExtsBaseCLISet = wire.NewSet(
 	metrics.WireSet,
 	featuremgmt.ProvideManagerService,
 	featuremgmt.ProvideToggles,
+	featuremgmt.ProvideOpenFeatureService,
 	hooks.ProvideService,
 	setting.ProvideProvider, wire.Bind(new(setting.Provider), new(*setting.OSSImpl)),
 	licensing.ProvideService, wire.Bind(new(licensing.Licensing), new(*licensing.OSSLicensingService)),