Avoid https://gitlab.haskell.org/ghc/ghc/-/issues/25608

Author: hamishmack

ci.nix

@@ -63,12 +63,12 @@
       # from here (so that is no longer cached) also remove ./materialized/ghcXXX.
       # Update supported-ghc-versions.md to reflect any changes made here.
       nixpkgs.lib.optionalAttrs (nixpkgsName == "R2411") {
-        ghc96 = false;
-        ghc98 = false;
-      } // nixpkgs.lib.optionalAttrs (nixpkgsName == "unstable") {
         ghc810 = true;
         ghc92 = false;
         ghc94 = false;
+        ghc96 = false;
+        ghc98 = false;
+      } // nixpkgs.lib.optionalAttrs (nixpkgsName == "unstable") {
         ghc96 = true;
         ghc98 = true;
         ghc98llvm = false;