cabal-testsuite borks on Windows under GHC 9.6

Tracking: #8858

Author: ulysses4ever

.github/workflows/validate.yml

@@ -187,14 +187,17 @@ jobs:
         run: sh validate.sh $FLAGS -s lib-tests
 
       - name: Validate lib-suite
+        # the [email protected] problem is tracked at https://github.com/haskell/cabal/issues/8858
+        if: ${{ runner.os != 'Windows' }} || ${{ matrix.ghc != '9.6.1' }}
         run: sh validate.sh $FLAGS -s lib-suite
 
       - name: Validate cli-tests
         if: matrix.cli != 'false'
         run: sh validate.sh $FLAGS -s cli-tests
 
       - name: Validate cli-suite
-        if: matrix.cli != 'false'
+        # the [email protected] problem is tracked at https://github.com/haskell/cabal/issues/8858
+        if: ${{ runner.os != 'Windows' }} || ${{ matrix.ghc != '9.6.1' }} || {{ matrix.cli != 'false' }}
         run: sh validate.sh $FLAGS -s cli-suite
 
   # The job below is a copy-paste of validate with the necessary tweaks