Polish code samples so that they are easier to copy & paste

[maciejwalkowiak]

No description provided.

[JurrianFahner]

@maciejwalkowiak It really depends how you have added your logger. In your code. For example if you would use lombok, you would use log.

If you add it by hand, LOGGER would make more sense.

See: https://projectlombok.org/features/log

[maciejwalkowiak]

@JurrianFahner indeed, I am not arguing about better name for logger field. LOGGER is just consistent with what is described above https://github.com/testcontainers/testcontainers-java/pull/5038/files#diff-771749e9c2131e4371d45e53427dee76d3a9aca99a9d2c29ddd28a0cf9f9049dR33

[kiview]

Oh yes, you are right @maciejwalkowiak, thanks for pointing out this inconsistency.