Enable all tests

.github/scripts/unittest-linux/run_test.sh

@@ -33,6 +33,8 @@ fi
     export TORCHAUDIO_TEST_ALLOW_SKIP_IF_NO_MOD_unidecode=true
     export TORCHAUDIO_TEST_ALLOW_SKIP_IF_NO_MOD_inflect=true
     export TORCHAUDIO_TEST_ALLOW_SKIP_IF_NO_MOD_pytorch_lightning=true
+    export TORCHAUDIO_TEST_ALLOW_SKIP_IF_NO_MOD_demucs=true
+    export TORCHAUDIO_TEST_ALLOW_SKIP_IF_NO_MOD_fairseq=true
     cd test
-    pytest torchaudio_unittest -k "not backend and not /io/ and not prototype and not ffmpeg and not fairseq and not hdemucs and not (torchscript and rnnt) and not torchscript_consistency"
+    pytest torchaudio_unittest
 )