Update src/a2a/server/apps/jsonrpc/jsonrpc_app.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: mindpower

src/a2a/server/apps/jsonrpc/jsonrpc_app.py

@@ -91,7 +91,7 @@
         Response = Any
         HTTP_413_REQUEST_ENTITY_TOO_LARGE = Any
 
-MAX_CONTENT_LENGTH = 10_000_000
+MAX_CONTENT_LENGTH = 10 * 1_000_000
 
 
 class StarletteUserProxy(A2AUser):