fix cspell ignore per daniel's recommendation (Azure#22865)

Author: kristapratico

.vscode/cspell.json

@@ -268,6 +268,12 @@
       "words": [
         "Phong"
       ]
+    },
+    {
+      "filename": "sdk/translation/azure-ai-translation-document/tests/*.py",
+      "words": [
+        "essai"
+      ]
     }
   ],
   "allowCompoundWords": true

sdk/translation/azure-ai-translation-document/tests/test_translation.py

@@ -549,6 +549,6 @@ def test_translation_with_glossary(self, client):
 
         with open(document, "rb") as fd:
             translated = fd.readline()
-        # cSpell:ignore essai
+
         assert b'essai' in translated  # glossary worked
         os.remove(document)

sdk/translation/azure-ai-translation-document/tests/test_translation_async.py

@@ -548,6 +548,6 @@ async def test_translation_with_glossary(self, client):
 
         with open(document, "rb") as fd:
             translated = fd.readline()
-        # cSpell:ignore essai
+
         assert b'essai' in translated  # glossary worked
         os.remove(document)