fix wasm-preview

Author: samuelcolvin

wasm-preview/run_tests.py

@@ -38,7 +38,15 @@ async def main(tests_zip: str, tag_name: str):
     print(f'Mounted {count} test files, installing dependencies...')
 
     await micropip.install(
-        ['dirty-equals', 'hypothesis', 'pytest-speed', 'pytest-mock', 'tzdata', 'inline-snapshot', pydantic_core_wheel]
+        [
+            'dirty-equals',
+            'hypothesis',
+            'pytest-speed',
+            'pytest-mock',
+            'tzdata',
+            'inline-snapshot<0.21',
+            pydantic_core_wheel,
+        ]
     )
     importlib.invalidate_caches()