Don't explode so much while testing

pubspace.py

@@ -37,7 +37,10 @@ mastodon.stream_hashtag("pubspace", PubspaceListener(), run_async=True)
 
 @app.get("/")
 async def home(request: Request):
-    app.state.log.info(await request.json())
+    try:
+        app.state.log.info(await request.json())
+    except Exception:
+        return {}
 
 
 @app.get("/healthz")