try updating fairseq to resolve np.float deprecation issue

.github/workflows/main.yml

@@ -27,10 +27,10 @@ jobs:
           sudo apt-get update
           sudo apt-get install libsndfile1
           python -m pip install --upgrade pip
-          pip install flake8 pytest black==23.3.0
+          pip install flake8 pytest black
           pip install g2p-en
           pip install huggingface-hub
-          pip install fairseq
+          pip install -U fairseq
           pip install sentencepiece
           pip install -e .
           if [ -f requirements.txt ]; then pip install -r requirements.txt; fi