[chore] Use different name for telemetry level key (open-telemetry#10547)

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#### Description

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Renames key to avoid conflict in JSON format.

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Fixes open-telemetry#10537

Author: mx-psi

service/telemetry.go

@@ -24,7 +24,7 @@ import (
 
 const (
 	zapKeyTelemetryAddress = "address"
-	zapKeyTelemetryLevel   = "level"
+	zapKeyTelemetryLevel   = "metrics level"
 )
 
 type meterProvider struct {