Update rank_zero_only decorator for LSF environments

[awaelchli]

What does this PR do?

Fixes #12583

The rank_zero_only decorator accesses a global variable to determine the rank. This is so because the decorator has no access to the trainer. When a logger makes a call to self.experiment before the trainer is instantiated (and the cluster environment with global_rank etc. is available), the rank must be determined from the environment variables directly. So far, only the canonical RANK and slurm variables were checked. Since LSF is supported directly by Lightning, we should include the environment variable in the global rank utility.

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cc @Borda @awaelchli