Merge #2922

2922: Uninterruptible close r=coot a=coot

'Network.Socket.close' is interruptible by asynchronous exceptions
because it is using using `closeFdWith` from `base`, which could block,
although for a very short time (by accessing IO manager MVar's shared
between different threads).


Co-authored-by: Marcin Szamotulski <[email protected]>

Author: iohk-bors[bot]