Update package versions in the frontend module

[tamasmak]

In #264 there were some version updates that also bumped the io.opentelemetry.semconv/opentelemetry-semconv version to the latest 1.28.0-alpha. With this, some deprecated classes were replaced.

The @opentelemetry/semantic-conventions is also used in the observability-kit-client frontend module. It is compatible with the current backend module but it should be also updated to the latest version to remove the usage of the deprecated classes.

Also, other package versions should be checked if they could be updated too.