0.57.0-2 fails to build with otel 1.45 and later; sid hit it when
golang-opentelemetry-otel 1.46.0-2 arrived:

 example/log/slogbridge/util.go:33:30: undefined: log.Value
 example/log/slogbridge/util.go:37:14: undefined: log.BoolValue
 [...]

otel/log 0.21.0 moved log.Value and log.KeyValue to the attribute package
(https://github.com/open-telemetry/opentelemetry-go/pull/8490).

I am preparing 0.62.0-1 with a patch porting the example to
attribute.Value; it will be uploaded once the new dependencies it needs
are in unstable.

Juan Manuel