io-sim: fixed io-classes constraint

`io-sim-1.10` can only be build against `io-classes-1.10`.

Author: coot

io-sim/io-sim.cabal

@@ -66,7 +66,7 @@ library
     default-extensions: GADTs
   build-depends:       base              >=4.16 && <4.22,
                        io-classes:{io-classes,strict-stm,si-timers}
-                                        ^>=1.9 || ^>=1.10,
+                                        ^>=1.10,
                        exceptions        >=0.10,
                        containers,
                        deepseq,