Logging: Use slog adapter for go-kit/log with App SDK logger (#99740)

* feat: use slog adapter for go-kit/log

The adapter library is Apache-2.0, which is compatible with AGPL-3.0 as a dependency.

The adapter library outputs a little more info than we'd like, but rather a couple fields too many than it outputting
ERROR logs as INFO.

* feat: update dependencies

* chore: attribute ownership of dependency

* refactor: move require

* chore: make update-workspace

pkg/infra/log/log.go

@@ -20,6 +20,7 @@ import (
 	"github.com/go-kit/log/level"
 	"github.com/go-stack/stack"
 	"github.com/mattn/go-isatty"
+	sloggokit "github.com/tjhop/slog-gokit"
 	"gopkg.in/ini.v1"
 
 	"github.com/grafana/grafana-app-sdk/logging"
@@ -53,6 +54,7 @@ func init() {
 	}
 	logger := level.NewFilter(format(os.Stderr), level.AllowInfo())
 	root = newManager(logger)
+	initAppSDKLogger(logger)
 
 	RegisterContextualLogProvider(func(ctx context.Context) ([]any, bool) {
 		pFromCtx := ctx.Value(logParamsContextKey{})
@@ -61,8 +63,6 @@ func init() {
 		}
 		return nil, false
 	})
-
-	logging.DefaultLogger = logging.NewSLogLogger(slog.Default().Handler())
 }
 
 // logManager manage loggers
@@ -112,6 +112,8 @@ func (lm *logManager) initialize(loggers []logWithFilters) {
 
 		lm.loggersByName[name].Swap(&compositeLogger{loggers: ctxLoggers})
 	}
+
+	initAppSDKLogger(lm.ConcreteLogger)
 }
 
 func (lm *logManager) New(ctx ...any) *ConcreteLogger {
@@ -548,3 +550,9 @@ func SetupConsoleLogger(level string) error {
 
 	return nil
 }
+
+func initAppSDKLogger(gkl gokitlog.Logger) {
+	// We need to allow Debug logs here. go-kit/log does not support sharing the level we're using.
+	// TODO: Refactor such that we can pass in a level in a more appropriate manner.
+	logging.DefaultLogger = logging.NewSLogLogger(sloggokit.NewGoKitHandler(gkl, slog.LevelDebug))
+}