make token counter request optional (#4489)

skyvern/utils/token_counter.py

@@ -2,4 +2,10 @@ import tiktoken
 
 
 def count_tokens(text: str) -> int:
-    return len(tiktoken.encoding_for_model("gpt-4o").encode(text))
+    """
+    tiktoken sends a request to https://openaipublic.blob.core.windows.net/encodings/cl100k_base.tiktoken to get the token
+    """
+    try:
+        return len(tiktoken.encoding_for_model("gpt-4o").encode(text))
+    except Exception:
+        return 0