fix skipif check on tests involving gated HF models (#1553)

SUMMARY:
Community user PRs are still failing tracing test checks. This loosens
the skip check so it resolves correctly

After merge and rebase, this should also resolve issue for #1521 

TEST PLAN:
Confirmed with @dbarbuzzi that this resolved the issue for #1445 .

Signed-off-by: Brian Dellabetta <[email protected]>

Author: brian-dellabetta

tests/llmcompressor/transformers/tracing/test_models.py

@@ -20,7 +20,7 @@
 
 
 @pytest.mark.skipif(
-    os.getenv("HF_TOKEN") is None,
+    (not os.getenv("HF_TOKEN")),
     reason="Skipping tracing tests requiring gated model access",
 )
 @pytest.mark.parametrize(