Disable check-formatting action altogether.

.github/workflows/github-actions-image.yaml

@@ -9,17 +9,17 @@ on:
     types: [prereleased]
 
 jobs:
-  check-formatting:
-    name: Check Haskell formatting
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Common setup
-        uses: ./.github/actions/common_setup
-        with:
-          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
-
+#  check-formatting:
+#    name: Check Haskell formatting
+#    runs-on: ubuntu-latest
+#    steps:
+#      - uses: actions/checkout@v2
+#
+#      - name: Common setup
+#        uses: ./.github/actions/common_setup
+#        with:
+#          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+#
 #      - name: Run fourmolu
 #        run: |
 #          nix-shell nix/ci.nix -j auto --run "git ls-files '*.hs' | xargs fourmolu -m inplace -o -XRecursiveDo -o -XTypeApplications -o -XPatternSynonyms -o -XBangPatterns"