Use cancelSoon instead of deprecated cancel

eth/p2p/discoveryv5/protocol.nim

@@ -1041,11 +1041,11 @@ proc close*(d: Protocol) =
 
   debug "Closing discovery node", node = d.localNode
   if not d.revalidateLoop.isNil:
-    d.revalidateLoop.cancel()
+    d.revalidateLoop.cancelSoon()
   if not d.refreshLoop.isNil:
-    d.refreshLoop.cancel()
+    d.refreshLoop.cancelSoon()
   if not d.ipMajorityLoop.isNil:
-    d.ipMajorityLoop.cancel()
+    d.ipMajorityLoop.cancelSoon()
 
   d.transp.close()
 

eth/utp/utp_socket.nim

@@ -734,7 +734,7 @@ proc destroy*(s: UtpSocket) =
   ## Moves socket to destroy state and clean all resources.
   ## Remote is not notified in any way about socket end of life.
   s.state = Destroy
-  s.eventLoop.cancel()
+  s.eventLoop.cancelSoon()
   # This procedure initiate cleanup process which goes like:
   # Cancel EventLoop -> Cancel timeoutsLoop -> Fire closeEvent
   # This is necessary due to how evenLoop look like i.e it has only one await
@@ -1758,7 +1758,7 @@ proc eventLoop(socket: UtpSocket) {.async.} =
     socket.pendingWrites.clear()
     socket.pendingReads.clear()
     # main eventLoop has been cancelled, try to cancel `checkTimeoutsLoop`
-    socket.checkTimeoutsLoop.cancel()
+    socket.checkTimeoutsLoop.cancelSoon()
     trace "main socket event loop cancelled"
     raise exc
 

tests/utp/test_utp_socket.nim

@@ -48,7 +48,7 @@ procSuite "uTP socket tests":
       initialPacket.header.wndSize == defaultConfig.optRcvBuffer
 
     await socket.destroyWait()
-    fut.cancel()
+    fut.cancelSoon()
 
   asyncTest "Outgoing socket should re-send SYN packet 2 times before declaring failure":
     let q = newAsyncQueue[Packet]()
@@ -82,7 +82,7 @@ procSuite "uTP socket tests":
       not socket.isConnected()
 
     await socket.destroyWait()
-    fut1.cancel()
+    fut1.cancelSoon()
 
   asyncTest "Processing in order ack should make socket connected":
     let q = newAsyncQueue[Packet]()