fabric: test with tbX (#16511)

requirements/fabric/test.txt

@@ -4,4 +4,4 @@ pytest==7.2.0
 pytest-cov==4.0.0
 pre-commit==2.20.0
 click==8.1.3
-tensorboard>=2.9.1, <2.12.0
+tensorboardX>=2.2, <=2.5.1  # min version is set by torch.onnx missing attribute

tests/tests_fabric/conftest.py

@@ -54,6 +54,7 @@ def restore_env_variables():
         "RANK",  # set by DeepSpeed
         "POPLAR_ENGINE_OPTIONS",  # set by IPUStrategy
         "CUDA_MODULE_LOADING",  # leaked since PyTorch 1.13
+        "CRC32C_SW_MODE",  # set by tensorboardX
     }
     leaked_vars.difference_update(allowlist)
     assert not leaked_vars, f"test is leaking environment variable(s): {set(leaked_vars)}"