tensorboardX >=2.6

Author: Borda

requirements/fabric/test.txt

@@ -7,4 +7,4 @@ pytest-rerunfailures ==15.1
 pytest-random-order ==1.2.0
 click ==8.1.8; python_version < "3.11"
 click ==8.2.1; python_version > "3.10"
-tensorboardX >=2.5, <2.7.0  # min version is set by torch.onnx missing attribute
+tensorboardX >=2.6, <2.7.0  # todo: relax it back to `>=2.2` after fixing tests