Update docgen.yml

Author: narendasan

.github/workflows/docgen.yml

@@ -48,7 +48,7 @@ jobs:
           cd docsrc
           dnf clean all
           dnf update 
-          dnf install -y doxygen pandoc
+          dnf install -y doxygen pandoc --allowerasing
           python3 -m pip install -r requirements.txt
           python3 -c "import torch_tensorrt; print(torch_tensorrt.__version__)"
           make html