build(deps): bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc from 0.29.0 to 0.46.0 in /tools/dockerfile-add-scanner

build(deps): bump go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc from 0.29.0 to 0.46.0 in /tools/dockerfile-add-scanner #8