Fix CONNECTION_STRING format in tox.ini

Author: damccorm

sdks/python/tox.ini

@@ -266,7 +266,7 @@ allowlist_externals =
   az
   bash
 setenv =
-  CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=https://azurite:10000/devstoreaccount1;
+  CONNECTION_STRING="DefaultEndpointsProtocol=https;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=https://azurite:10000/devstoreaccount1;"
 commands_pre =
   pip check
   wget storage.googleapis.com/dataflow-samples/shakespeare/kinglear.txt