Configure stack

Author: philderbeast

.github/workflows/stack.yml

@@ -28,6 +28,12 @@ jobs:
         enable-stack: true
         stack-version: '2.15.7'
 
+    - name: Configure stack
+      run: |
+        stack config set system-ghc --global true
+        stack config set install-ghc --global false
+        stack config set resolver ${{ matrix.vers.stackage }}
+
     - name: Update hackage index
       run: cabal update --ignore-project