chore: pin starkbank-ecdsa version (#1016)

Author: eshanholtz

setup.py

@@ -11,7 +11,7 @@
 def getRequires():
     deps = [
         'python_http_client>=3.2.1',
-        'starkbank-ecdsa>=1.0.0'
+        'starkbank-ecdsa>=1.0.0,<2.0.0'
     ]
     return deps