fix: Increase timeout and batch size for nix eval

After running some tests, these settings seem to perform about 100-200x
times faster than the previous values, at the expense of more memory.

Author: Erethon

src/shared/listeners/nix_evaluation.py

@@ -116,7 +116,7 @@ async def realtime_batch_process_attributes(
 
 
 async def drain_lines(
-    stream: asyncio.StreamReader, timeout: float = 0.25, max_batch_window: int = 10_000
+    stream: asyncio.StreamReader, timeout: float = 3.5, max_batch_window: int = 75_000
 ) -> AsyncGenerator[list[bytes]]:
     """
     This utility will perform an opportunistic line draining