[chore] update otel libraries (#3740)

* chore: update otel dependencies

* refactor: combine tracing & metrics in observability package

* chore: update example tracing compose file

internal/observability/bun.go

@@ -0,0 +1,42 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+//go:build !nootel
+
+package observability
+
+import (
+	"github.com/uptrace/bun"
+	"github.com/uptrace/bun/extra/bunotel"
+	metricnoop "go.opentelemetry.io/otel/metric/noop"
+	tracenoop "go.opentelemetry.io/otel/trace/noop"
+)
+
+func InstrumentBun(traces bool, metrics bool) bun.QueryHook {
+	opts := []bunotel.Option{
+		bunotel.WithFormattedQueries(true),
+	}
+	if !traces {
+		opts = append(opts, bunotel.WithTracerProvider(tracenoop.NewTracerProvider()))
+	}
+	if !metrics {
+		opts = append(opts, bunotel.WithMeterProvider(metricnoop.NewMeterProvider()))
+	}
+	return bunotel.NewQueryHook(
+		opts...,
+	)
+}